The grandmother most likely has arthritis... she experiences pain that does not let her do the things she did before. This limited freedom of movement has made her unhappy, and does not wish for people to see her. She has most likely developed a mental disorder such as social anxiety disorder, experiencing feelings of isolation, depression, and general discontent.
Just RISK FOR INFECTION !!!
Im thinking B is the correct answer
I believe the answer is either C. Or B. But mostly likely is probably C.
Hang around one or two friends who smoke so you get used to it