【单选题】听力原文:M: Hey! Jenny, do you want to live a longer life? F: Why? Of course! Everyone hopes so. M: Look, here is some advice given by experts on how to live a longer and happier life. They tell people to...
A.
To do exercise and keep a healthy diet.
B.
To follow the doctors' advice strictly.
C.
To have more positive attitudes towards life and stay optimistic.