Q: 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: Purse left behind. Sentence 1: Mary took her purse into the bathroom stall and set it on the shelf. Sentence 2: Without thinking, she exited the bathroom without her purse. Sentence 3: Later she realized she didn't have her purse. Sentence 4: She ran to the bathroom and found her purse. Choices: a. Unfortunately, her wallet had been emptied and she was sad. b. James passed the written part which made him happy.
A:
a