Q: 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: lunch cost. Sentence 1: Sam wanted the lunch cost to go down in his school. Sentence 2: He started a petition. Sentence 3: He asked for signatures in the cafeteria. Sentence 4: He gave it to the student council. Choices: a. The student council reduced the lunch cost. b. He was unhappy as he handed over the $100.
A:
b