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 does not connect with the rest of the story, indicating your choice as 'a' or 'b'. If both sentences are plausible, pick the one that makes less sense.

Title: Rotten apples. Sentence 1: Ben is in his favorite store. Sentence 2: He decides to buy some apples. Sentence 3: He takes them home and washes them. Sentence 4: After washing them he bites into the apple. Choices: a. He finds a bunch of worms in his apple and is very upset. b. Lance gets very seasick and lays down for the rest of the trip.
b