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: Exam. Sentence 1: It was Kia's first year studying French. Sentence 2: She fully expected to fail her exam. Sentence 3: But when she got her paper back, she was surprised. Sentence 4: She had scored a B+ in her French class! Choices: a. Kia was very proud of herself. b. He ended up having to call a plumber to fix the clog.

Ex Output:
a

Ex Input:
Title: Call Center. Sentence 1: Tom had recently graduated college and was unemployed. Sentence 2: Tom desperately needed a job. Sentence 3: Tom applied everywhere. Sentence 4: Tom applied to a position at a call center. Choices: a. Tom was hired there and very happy about it. b. He finally started winning tournaments.

Ex Output:
a

Ex Input:
Title: Not The Night She'd Planned. Sentence 1: Verna waited for her husband to get home from his first day as an EMT. Sentence 2: She made his favorite dish of meatloaf, and she bought wine. Sentence 3: When he came in, he had a look on his face she'd never seen. Sentence 4: He said he wasn't hungry, he just wanted to lie down. Choices: a. Nolan's life is so perfect, I don't envy him at all. b. They went upstairs, and she held him until he drifted off.

Ex Output:
b