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.

Input: Consider Input: Title: Salesman. Sentence 1: Bill got a new job as the company inside sales person. Sentence 2: Bill had never made a sale over the telephone before. Sentence 3: Bill read several books on how to sell product over the phone. Sentence 4: Bill began to implement the techniques he learned from reading. Choices: a. Now Bill is making several sales a day! b. He had to see the doctor and suffered from a concussion.

Output: a

Input: Consider Input: Title: A River Ride. Sentence 1: Janice and her family were going on a ride. Sentence 2: They had rented a boat. Sentence 3: They were going up the river in their boat. Sentence 4: They were all having a marvelous time. Choices: a. The boat ride would be remembered by all of them for a long time. b. She reeled it in, what a whopper!

Output: a

Input: Consider Input: Title: Unexpected pregnancy. Sentence 1: Angelina was in her early 40s. Sentence 2: She was told she was infertile. Sentence 3: So she didn't think that it was important to use birth control. Sentence 4: But one day she noticed that she was 2 months late. Choices: a. She took a pregnancy test and it was a big fat positive! b. He walked slowly toward her, his hand outstretched to make contact.
Output: a