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: Ask permission to court. Sentence 1: Fred really liked Susie. Sentence 2: But he knew her family was very strict. Sentence 3: He decided he wanted to court her. Sentence 4: So he asked her parents. Choices: a. Thankfully they said yes. b. Doing Karate made her happy and strong!
Output:
a