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: A Contact With an Old Acquaintance. Sentence 1: A girl I used to babysit for contacted me through social media. Sentence 2: She's no longer a little girl, but is in her 30s. Sentence 3: She told me she loves the Beatles because I often played their music. Sentence 4: I don't even remember this, and it touched my heart that she said so. Choices: a. He purchased two pairs of new jeans. b. It's amazing we can have an influence through the little things we do.
a