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: First Day. Sentence 1: Jacob was nervous for his first day of high school. Sentence 2: He wasn't sure where all of his classes were located. Sentence 3: Jacob had to ask some friends for help finding some classrooms. Sentence 4: He then found all of his classrooms and even made it to class on time. Choices: a. Jacob was happy with his first day of high school. b. He was so popular that he soon had enough work to sustain him.
Example Output: a

Example Input: Title: The Band. Sentence 1: Courtney loved playing the trumpet. Sentence 2: She joined the school band. Sentence 3: She practiced every day for an hour. Sentence 4: The band had practice every morning. Choices: a. Courtney loved playing with all her classmates. b. The boss offered Bob a raise- much larger than the one Bob had wanted!
Example Output: a

Example Input: Title: Firewood. Sentence 1: One day a huge storm blew over a tree in Tom's backyard. Sentence 2: Tom spent 2 days hauling branches to the curb to be taken away. Sentence 3: Tom hired another man to saw the tree up into logs. Sentence 4: For 3 weeks Tom got his exercise by chopping firewood. Choices: a. When he was done, Tom had enough firewood for many long winters. b. From that point on Miranda did a credit check on all new tenants.
Example Output:
a