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.
Q: Title: No More Monkey Business. Sentence 1: Marco ran a business that imported monkeys. Sentence 2: His major supplier had difficulty getting monkeys to Marco. Sentence 3: Marco was unable to find other suppliers for his monkeys. Sentence 4: Marco lost money because he had no monkeys to sell. Choices: a. Marco finally had to close his monkey import business. b. After a few weeks, many of these women became close friends.
A:
a