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: Check in Treat. Sentence 1: Kate and her friends were checking into their hotel in Vegas. Sentence 2: There was a bowl of mangoes on the counter at the check in desk. Sentence 3: They were allowed to take them. Sentence 4: Kate took two. Choices: a. Kate loved anything that was free. b. Jane had to discuss the problems at home.
Example Output: a

Example Input: Title: Marco Visits Utah. Sentence 1: Marco had always wanted to visit Utah. Sentence 2: Finally he had saved money and booked his trip. Sentence 3: Marco loved exploring the natural beauty of the state. Sentence 4: He had a terrific trip. Choices: a. John confessed his love to Jason. b. Marco was glad that he had visited Utah.
Example Output: b

Example Input: Title: Ugly Sweater. Sentence 1: Kate's grandmother gave her a sweater for christmas. Sentence 2: It was really ugly. Sentence 3: Unfortunately Kate's grandmother made it herself. Sentence 4: Kate had to wear it a few times to show she liked it. Choices: a. He was embarrassed when everyone started clapping. b. She took it off immediately after her grandmother left.
Example Output:
b