A、Because it damages the liver and kidneys. B、Because it increases the stress on the body. C、Because it causes trouble breathing

W: Yes. I read from newspapers that more than half of all the US adults weigh too much.
M: So do about 25% percent of our children. The US Surgeon General calls this a crisis.
W: A crisis!
M: Yes. Imagine it as a river in rain. The rain keeps falling, and the water keeps rising. At first no one is very worried. But the river keeps rising, and rising. Then it overflows its banks and floods the city. Suddenly, we have a crisis.
W: (6-1) But why is being obese a crisis? Is obesity a serious health problem?
M: (6-2) Well, obesity—um, being too fat—is killing us, for it increases the stress on our bodies. Our hearts and other organs have to work harder, and they break down sooner. Obesity is the number two cause of death in America today, right behind smoking. We all know how bad smoking is. Being too fat is the second biggest killer.
W: I get it, but is fast food the only factor causing obesity? Isn’t there anything else to consider?
M: Of course there are other factors to consider. Simply eating fast food, by itself, does not make you obese. But it does no good to your health, either. (7) A few years ago, a man decided to eat at McDonald’s every day for a month; breakfast, lunch and dinner. Before he began doing this, he was in almost perfect health. Thirty days and about 40 pounds later, he had heart problems and trouble breathing. His liver and kidneys were weak. His doctor said his liver was similar to an alcoholic’s. I know this case was excessive, but what was scary was that while doing this, he found that about 20 percent of McDonald’s customers really do eat there virtually every day.
W: I guess it is not only McDonald’s fault; it speaks of all fast food in general.
M: Yet, according to the statistics, global fast food sales reached $239 billion in 2014. (8) In India alone, the fast food industry is growing by 41 % a year.
W: We have to admit that the fast food industry is growing very fast.
M: Yes, McDonald’s has outlets in 126 countries on 6 continents and operates over 31,000 restaurants worldwide. Another example is Burger King, which has more than 11,100 restaurants in more than 65 countries. KFC is located in 25 countries. Subway is one of the fastest growing franchises in the world with approximately 39,129 restaurants in 90 countries as of May 2009. All these examples show that fast food is replacing the traditional food in one sense.
W: Since fast food is harmful to our health, how can it become so popular?
M: (9) As a matter of fact, fast food has come under criticism ever since its birth. Concerns range from claimed negative health effects, alleged animal cruelty, cases of worker exploitation, and claims of cultural degradation via shifts in people’s eating patterns away from traditional food.
W: And I heard in America some local governments are restricting fast food chains by limiting the number of restaurants found in certain geographical areas.
M: Yes. (10) Good news is that, to combat criticism, fast food restaurants are starting to offer more health-friendly menu items. In addition to health critics, there are suggestions for the fast food industry to become more eco-friendly. The chains have responded by "reducing packaging waste".
W: We are so glad to hear that! After all, it is hard to imagine we can do without fast food. Thank you for joining us.
This is the end of Part Two of the interview. Questions 6 to 10 are based on what you have just heard.
6. According to the man, why is being obese a crisis?
7. What happened to the man who ate at McDonald’s every day for a month?
8. How fast does the fast food industry grow every year in India?
9. What is people’s attitude towards fast food since its birth?
10. What are fast food restaurants starting to do to deal with criticism?