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.
Q: Title: Learning to walk. Sentence 1: Kim was trying to teach her two year old to walk. Sentence 2: He would take a few steps then fall down. Sentence 3: One day she left a peanut butter and jelly sandwich on the couch. Sentence 4: She accidentally lost sight of the child. Choices: a. After watching the movie, Rowan canceled his trip. b. She found that the child had walked to get the sandwich.
A:
a