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: Gaelic. Sentence 1: Altan went to the Gaeltacht to learn Irish. Sentence 2: He had trouble learning how to pronounce many of the words. Sentence 3: He listened to a lot of Celtic music to help him. Sentence 4: Eventually, he got the hang of it and was fluent in Irish. Choices: a. They were released by 11 AM. b. He was proud of his Irish heritage.
b