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 seamlessly connects with the rest of the story, indicating your choice as 'a' or 'b'. If both sentences are plausible, pick the one that makes more sense.

Title: The Lottery. Sentence 1: Monica had extra money and wanted to play the lottery. Sentence 2: She paid $50 for some lottery tickets to win the big jackpot. Sentence 3: Monica was confident that today was her lucky day. Sentence 4: When the winning numbers were announced, none of them were hers. Choices: a. Cathy felt that the fresh eggs made her sandwich delicious. b. Monica decided she would never gamble that much money again.
b