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.

Title: Taxi Driver. Sentence 1: Keith drives a taxi cab for a living. Sentence 2: He picks up passengers in a very large city. Sentence 3: Keith likes to ask his customers about their lives. Sentence 4: He also tells them about his hobbies. Choices: a. She did great and eventually got a prosthetic leg! b. Keith is thankful that he gets to meet many different people each day.
b

Title: Squirrels Ate Lisa's Pumpkins. Sentence 1: Lisa set out two pumpkins on her front steps. Sentence 2: She went to work and returned home seven hours later. Sentence 3: Lisa found the pumpkins destroyed on the front lawn. Sentence 4: Lisa then reviewed the home's video security footage. Choices: a. Instantly she felt better. b. The video footage shows squirrels eating the two pumpkins.
b

Title: House. Sentence 1: Ken was trying to sell his house. Sentence 2: Ken was frustrated because it had been a very long process. Sentence 3: Ken sat and thought about why no one wanted it. Sentence 4: He thought it was a great house , he had a lot of good memories there. Choices: a. Ken decided to keep the house. b. Felix was very proud of him and gave him a calculator as a reward.
a