Teacher: 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.
Teacher: Now, understand the problem? If you are still confused, see the following 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: A
Reason: As mentioned in fourth sentence, the incident turned a new leaf to Rick's life; so, he must be happy now.

Now, solve this instance: Sentence1: The delivery man handed a package to me. Sentence2: I opened the box. Sentence3: Since nothing was inside, I tried shouting at the delivery man. Sentence4: He couldn't hear me and drove off. 
 (A) I had to call to find out what was going on. (B) I was happy with his service.
Student:
A