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: Merry Go Round. Sentence 1: Sally could not decide between the white horse and pink bunny. Sentence 2: Choosing the right animal on the merry go round was serious business. Sentence 3: She finally decided on the pink bunny. Sentence 4: Her grandmother realized she wanted to ride the horse as much. Choices: a. They took lots of pictures of the animals. b. So she got her a ticket for a second ride.
[A]: b

[Q]: Title: Helpful. Sentence 1: My son went outside to play. Sentence 2: A few hours after he came back in, my neighbor came over. Sentence 3: He said he wanted to tell me how helpful my son was. Sentence 4: He told me how he helped him rake leaves on his lawn. Choices: a. The next moment I turn my head and see a big ball of fluff in my face! b. I went and found my kid and told him how proud I was.
[A]: b

[Q]: Title: Poor Quality. Sentence 1: Kate bought flimsy headphones from a highway gas station. Sentence 2: They cost way more than they were worth. Sentence 3: To top it off they sounded terrible. Sentence 4: Usually you get what you pay for. Choices: a. George hurried home to read his new comic books. b. This was one of those times that was not the case.
[A]:
b