Instructions: 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.
Input: Sentence1: Sam wanted to throw a party. Sentence2: Sam invited all of his friends and neighbors. Sentence3: The party got extremely wild. Sentence4: All of the guests left the party in disgust. 
 (A) Sam became a party planner. (B) Sam had a terrible hangover the next day.
Output:
B