The Gallup Poll shows that the number of people A) who suffer from the worst dis

题目：The Gallup Poll shows that the number of people A) who suffer from the worst dis

The Gallup Poll shows that the number of people
A) who suffer from the worst disease — AIDS has fallen.
B) who think AIDS threatens the countryside has fallen.
C) who worry about AIDS and health problems has fallen.
D) who think AIDS is the country’s top health killer has fallen.