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 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: Tennis. Sentence 1: Charlie is really bad at playing tennis. Sentence 2: Charlie really wants to get good so he practices all day and night. Sentence 3: After a couple of months of practicing, Charlie gets very good. Sentence 4: Now that Charlie is very good at tennis everyone likes Charlie. Choices: a. Charlie is glad he practiced so hard at tennis. b. It helps me get better at the thing I like to do.
Output:
b