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.

Example Input: Title: Being Stubborn. Sentence 1: Jen felt extremely hot when she came home. Sentence 2: She decided to take a nap. Sentence 3: Her mom took her temperature and found out that she had a fever. Sentence 4: Jen refused to go to the hospital and stayed in her bed. Choices: a. She agreed to go when the fever got worse. b. Steve ended up buying the brand on sale.
Example Output: a

Example Input: Title: Candy. Sentence 1: The boy bought some candy. Sentence 2: He hid it in his room. Sentence 3: His sister found the candy. Sentence 4: She took a big handful. Choices: a. The boy never noticed the missing candy. b. Sam kindly helps them through their problems.
Example Output: a

Example Input: Title: TV Argument. Sentence 1: Jack wanted to watch the world cup game on TV. Sentence 2: His sister also wanted to use the TV to watch a sitcom. Sentence 3: They argued over who needed to use it the most. Sentence 4: They took their argument to their dad to get a decision. Choices: a. Their dad changed the channel so neither of them got what they wanted. b. He decided never to skip breakfast again.
Example Output:
a