I am not 100% sure but I believe it's A. a deck of cards based on my logic.
A baseball and a coffe mug is too big and an open palm can vary in size too much.
The answer to this question is D. Colon
According to popular belief, Most medical workers think that the colon does not possess any form of digestive system.
But, Recent research shows that several test subjects actually could absorb energy from starch and nonstarch polysaccharides from their colon
The most appropriate answer would be B. There is a behavioral phenomena in humans to avoid those they see as different, but also to avoid those who are known to be diseased regardless of the threat of infection. This can lead to social isolation for those with STI, if their condition becomes known to others.