You will be given a definition of a task first, then some input of the task.
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: Cereal Bars. Sentence 1: Jeff went to the store to buy cereal. Sentence 2: But when he came back, he couldn't believe he forgot milk. Sentence 3: So he decided to mix the cereal with maple syrup, oats, and vanilla. Sentence 4: And he put the mixture in the oven to make cereal bars. Choices: a. Luckily when it finally played it was the correct movie. b. Jeff preferred his sugary cereal bars over cereal and milk.
Output:
b