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: Ellen was at her doctor's office. Sentence2: She was about to find out the sex of her baby. Sentence3: She was really hoping for a boy! Sentence4: She held her breath as the doctor scanned her belly. 
 (A) Ellen was disappointed to find out she was having a boy. (B) Her doctor confirmed it was a boy!
Student:
B