We would need more information, are you sure this is all there is?
With the information that is given I believe that the answer is:
C. Constantly changing pieces of literature.
The correct answer is D. it tells of the origins of something.
Here we can see how the horse came to be - it was made out of clay and shaped into a horse, and this is why today we have horses, at least according to this myth. Myths have often been created to explain the origin of many things that were usually inexplicable at the time.
Answer:
As soon as she arrived she went straight to the kitchen to see if the monkey was there. It was,
what a relief! She wouldn't have liked to admit that her Mother had been right. Monkeys at a birthday?
Her mother had sneered.
“Get away with you, believing any nonsense you're told!” She was cross, but not because of the
monkey, the girl thought; it's just because of the party.
"I don't like you going," she told her. "It's a rich people's party."
"Rich people go to Heaven too," said the girl, who studied religion at school.
"Get away with Heaven," said the mother.
"I’m going because I’ve been invited," she said. "And I’ve been invited because Luciana is my friend.
Explanation:
It looks like 2) "it" would need to be changed.