Given the task definition and input, reply with output. 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: Getting Jumped. Sentence 1: Tom was shopping. Sentence 2: When he got to his car his battery was dead. Sentence 3: He asked around if anybody could help. Sentence 4: Someone agreed to give him a jump. Choices: a. Tom was able to drive home. b. Adrienne left the store very frustrated.
a