Given the task definition and input, reply with output. 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 does not connect with the rest of the story, indicating your choice as 'a' or 'b'. If both sentences are plausible, pick the one that makes less sense.

Title: A boy becomes a magician. Sentence 1: A little boy always dreamed of becoming a magician. Sentence 2: So the little boy went to the local library and got books on magic. Sentence 3: The little boy studied the books on magic day and night. Sentence 4: The little boy began to practice doing magic tricks in his bedroom. Choices: a. All the boys in class would then yell "Erica Miss America." b. The little boy finally performed in front of his friends and family.
a