A、Smoking. B、Disease. C、Poor food. D、Accident. AWhat is the main cause of the death in industrial countries?

A new international study shows that six people die every minute from smoking. This study shocked most people because it means 3 million deaths around the world every year. If the present rate of smoking continues, the number of deaths each year from smoking could rise to 10 million by the year 2050. This news has worried the most people in the developed countries, especially those smokers.
    The study also shows that smoking is the main cause of the death in industrial countries, and most of the smoking deaths have happened to men, especially in developing countries. That means more people smoke in the poor areas than in the rich areas and more people died in the poor countries than in the wealthy countries.
    In addition, the study indicates that smoking may also cause lung cancer to those adults. It may lead to cancer of the mouth and other parts of body. Smokers are more likely than nonsmokers to suffer from heart disease. Therefore, experts advise the people to stop smoking completely so that they can reduce their chance of dying early.