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.

Ex Input:
Title: Last minute shopping.. Sentence 1: Linda had been waiting all year for her summer vacation. Sentence 2: She had already purchased her plane ticket. Sentence 3: She was going to stay at a beachfront resort. Sentence 4: The day before her trip she packed her bag. Choices: a. She was so annoyed! b. She realized she needed to go out and buy a bathing suit.

Ex Output:
b

Ex Input:
Title: Star Gazing. Sentence 1: On a clear summer night Traci likes to look at the stars. Sentence 2: Since the time she was a little girl she has been mesmerized by them. Sentence 3: Her favorite constellation is the Big Dipper. Sentence 4: She also loves the Aurora Borealis. Choices: a. The forum got taken down. b. If it's a clear night you know just where she can be found!

Ex Output:
b

Ex Input:
Title: Poor Decisions. Sentence 1: Tim needed gas for his car. Sentence 2: He also wanted to get beer. Sentence 3: Both cost about the same. Sentence 4: Tim decided to get the beer. Choices: a. He walked to work the next morning. b. Abby was loving the pizzeria that she choose for dinner.

Ex Output:
a