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: Lara. Sentence 1: Lara Smara was elated. Sentence 2: She'd taken a blood test. Sentence 3: The test showed that she and her parents weren't related. Sentence 4: The doctors explained to her that wasn't good. Choices: a. She said she always thought she was adopted. b. It was hard to diet but I am proud that I reached my goal.

Ex Output:
a

Ex Input:
Title: George Foreman. Sentence 1: Nancy made lunch for Randy with her George Foreman grill. Sentence 2: She was on lunch break and didn't have time to clean up the mess. Sentence 3: Randy went in there after to wash the dishes. Sentence 4: He grabbed the grill without realizing it was still hot. Choices: a. The last thing she opened was a Nintendo 3DS, her most wanted item. b. He now has lines burned onto his palm and fingertips.

Ex Output:
b

Ex Input:
Title: Helpful Customer. Sentence 1: I was new to a grocery store and have no clue where to go. Sentence 2: All I wanted was some coffee beans. Sentence 3: The workers were not available. Sentence 4: I asked a customer and he pointed me towards the aisle. Choices: a. I thanked the customer and want to the coffee aisle. b. And as they talked, they realized they had been neighbors as kids.

Ex Output:
a