During covid-19,why do so many Americans refuse to wear face-masks?

A.Because in their culture, only sick people wear face-masks.

B.Because in their culture, people who wear masks are discriminated against by the people around them.

C.Because they believe that wearing face-masks causes breathing problems.

D.Because it&

E.39;s hard for them to buy face-masks during cover-19.

正确答案：Because in their culture, only sick people wear face-masks.