Which statement is true about short stories?

a. they have a simpler plot than novels.

b. they are a type of nonfiction.

c. the characters typically grow and change through more experiences and interactions than do characters in a novel.

d. they are written so they can be read in a matter of a few days.

If i'm correct, the true statement would be a. they have a simpler plot than novels. 

b. is false because short stories are fiction, c is false because there is no concrete proof or rules about short stories saying that characters have to experience more growth than regular novels, and d is false because regular novels can also be read in a matter of a few days.