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: Return Fire. Sentence 1: A couple of people gathered in the parking lot. Sentence 2: They ignited a few fireworks. Sentence 3: Dan had to reignite some of them. Sentence 4: However, he got burned by one of the sparks. Choices: a. The officer immediately arrested him. b. His mom took him to the hospital to get a few stitches.
[A]: b

[Q]: Title: The Bully. Sentence 1: Chris was worried about going to school. Sentence 2: There was a boy that constantly bullied Chris there. Sentence 3: Chris went to school in anticipation of a fight. Sentence 4: He couldn't believe his eyes when he walked by the principal's office. Choices: a. It is a really great computer. b. The bully was in the principal's office crying with his mother there!
[A]: b

[Q]: Title: buying milk. Sentence 1: I looked in the fridge and I was out of 1% milk. Sentence 2: So, I decided that I had to walk to the store. Sentence 3: When I got to the store, they only had 2% milk and 3.25% left in stock. Sentence 4: I decided to buy the 2% milk because it was less fattening. Choices: a. I bought the milk and walked home from the store. b. They told him that they saw an ad in the taco shop.
[A]:
a