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: Good Service. Sentence 1: We were waiting at a restaurant. Sentence 2: Our server was very kind. Sentence 3: She made sure our drinks were full. Sentence 4: She brought us our ticket for dinner. Choices: a. We gave her a great tip. b. She was sad when he pretended not to see her.
Example Output: a

Example Input: Title: John Makes A Sandwich. Sentence 1: John realizes that he hasn't eaten anything all morning. Sentence 2: He is beginning to feel hungry. Sentence 3: John decides to make himself a sandwich to eat. Sentence 4: He fills the sandwich with meat and vegetables. Choices: a. John is glad that he got something to eat this morning. b. Cathy did so well at the interview, that they hired her on the spot.
Example Output: a

Example Input: Title: Sprained Ankle. Sentence 1: Jamie had sprained her ankle. Sentence 2: Her friends were going to the fair. Sentence 3: Jamie wanted to go to the fair with her friends. Sentence 4: Her mother bought her a set of crutches. Choices: a. She realized she would like this new school. b. Jamie was able to join her friends at the fair.
Example Output:
b