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: Learning to Cook. Sentence 1: Kyle had a great interest in learning to cook. Sentence 2: He decided to take a cooking class. Sentence 3: Kyle had a great time at his cooking class. Sentence 4: He continued taking the class. Choices: a. Eventually Kyle joined a culinary academy. b. Because he won, Thomas changed the oil for her.
a