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.
Q: Title: Second guessing. Sentence 1: The teacher announced that there are 2 minutes left to the test. Sentence 2: I had one question left on my test to answer. Sentence 3: After selecting an answer, I quickly changed it and submitted it. Sentence 4: The class received their exams during the next day. Choices: a. I lost a couple of points for the last question since it's wrong. b. After that every week she would bring in baked goods.
A:
a