You will be given a definition of a task first, then some input of the task.
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: Basement. Sentence 1: Coa needed some extra cash and begged her parents for money. Sentence 2: They offer her $15 to clean out the basement. Sentence 3: She sadly agreed, but as she cleaned, she brightened. Sentence 4: There was a huge box of pristine old records hidden away there! Choices: a. Coa's parents agreed that she could sell the records for money! b. So I was quickly able to solve the issue.
Output:
a