You will be given a definition of a task first, then some input of the task.
In this task, you're given the title of a five-sentence story, the first four sentences, and two options for the fifth sentence as a and b. Your job is to pick the sentence option that seamlessly connects with the rest of the story, indicating your choice as 'a' or 'b'. If both sentences are plausible, pick the one that makes more sense.

Title: The Role. Sentence 1: Sara wanted to audition for a musical. Sentence 2: She heard there was an open call for Annie. Sentence 3: She practiced singing for weeks. Sentence 4: She got the role! Choices: a. She was really proud of herself. b. When they gave it to him Shaun fell in love with it immediately!
Output:
a