One reason HIV/AIDS is serious is

a. the virus survives well in the environment.
b. it is transmitted through casual contact.
c. many infected people do not know they are infected.
d. people do not know how to prevent it.

help please

Respuesta :

Answer:

c. many infected people do not know they are infected.

Explanation:

I'm pretty sure this is the right answer Sry if its not