A、They are dining in an Italian cafeteria. B、The woman successfully lost some weight on diet. C、The woman effectively lost some

W: You punched in late this morning, what happened? Did you have car problems?
M: No, I usually drive to work until recently the gas price rockets up.  So I have to take my bicycle to save budgets today.
Q: What can we learn from the conversation?

M: You are much skinnier than last time we met in that Italian Cafeteria! It looks as if your weight losing plan has been going on well.
W: I have to admit that illness is much more effective than diet in losing weight.  This flu could have killed me.
Q: What can we infer about the conversation?