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: Terry the Typist. Sentence 1: Terry is a professional typist. Sentence 2: Today, he was in for a long day. Sentence 3: He had to type a whole 500 page book in three hours. Sentence 4: Terry typed away and was getting blisters on his fingers. Choices: a. She hadn't known how far she was from home! b. He finished typing the book with a few minutes to spare.
Example Output: b

Example Input: Title: Tea Party. Sentence 1: Every morning Sue's daddy makes tea and drinks it from a mug. Sentence 2: Sue wanted to try tea also. Sentence 3: One day her daddy planned a tea party for her. Sentence 4: They drank tea and ate cookies together. Choices: a. Sue decided she didn't like tea, she just liked being with her dad. b. In no time at all Sally was making simple clothes for her dolls.
Example Output: a

Example Input: Title: Light Tremors. Sentence 1: Tom had just moved to the east coast. Sentence 2: One night there were some slight tremors. Sentence 3: Tom had never felt that before. Sentence 4: He freaked out and started yelling. Choices: a. She made a 100 and was happy she had been studying. b. All his friends made fun of him.
Example Output:
b