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: Triple Vision. Sentence 1: Masako was one of three triplets. Sentence 2: Her friends and family often had trouble telling them apart. Sentence 3: Masako was tired of being mistaken for her sisters. Sentence 4: One day, she dyed her hair blue. Choices: a. It looked like the perfect fit. b. Now, no one mistakes Masako for her sisters.
A:
b