In this task, you're given four sentences of a story written in natural language. The given story is not complete and your job is to complete the story by selecting one of the sentence choices from (A) and (B), such that the story sounds fully coherent.
One example: Sentence1: Rick grew up in a troubled household. Sentence2: He never found good support in family, and turned to gangs. Sentence3: It wasn't long before Rick got shot in a robbery. Sentence4: The incident caused him to turn a new leaf. 
 (A) He is happy now. (B) He joined a gang.
Solution is here: A
Explanation: As mentioned in fourth sentence, the incident turned a new leaf to Rick's life; so, he must be happy now.

Now, solve this: Sentence1: Brie and her cat moved in with her boyfriend and his cat. Sentence2: The two cats hated each other. Sentence3: They spent most of their hissing each other. Sentence4: One night, six months later, the cats decided to cuddle. 
 (A) Brie was glad they had become friends. (B) Brie hated cheese.
Solution:
A