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.
Q: Title: Learning a Lesson. Sentence 1: On a bright day, Mike looked at the sun. Sentence 2: His eyes began to hurt immediately. Sentence 3: He thought why this might happen. Sentence 4: Instead, he looked to the sides of the bright sun. Choices: a. No one could remember what else he had done. b. Now, he could enjoy the light while staying safe.
A:
a