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: Ear Worm. Sentence 1: Dan heard a tune that he really enjoyed while driving. Sentence 2: The announcer never stated what it was or who the tune was by. Sentence 3: Dan asked several friends if they knew the tune. Sentence 4: Dan felt frustrated by not knowing who did the tune. Choices: a. Late that night, Dan woke up, finally remembering whose tune it was! b. To this day, the widow doesn't know who gave her that money.
A:
b