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.

Input: Consider Input: Title: Ran out of ink. Sentence 1: Kelsi was taking a math test. Sentence 2: She was using her favorite pen. Sentence 3: All of the sudden the ink went out. Sentence 4: She had no other writing instrument. Choices: a. So she couldn't finish the test. b. Finally when it stopped we were alright.

Output: a

Input: Consider Input: Title: Cereal Disappointment. Sentence 1: I've always liked pumpkin. Sentence 2: So when I saw pumpkin flavored Puffins cereal, I bought it. Sentence 3: But when I tried it at home, I tasted no pumpkin. Sentence 4: And there was too much sugar as well. Choices: a. When Lilo came home from the groomer, he looked beautiful and clean. b. I regret buying the cereal.

Output: b

Input: Consider Input: Title: School. Sentence 1: Howard hated school. Sentence 2: He thought about dropping out. Sentence 3: He told his friends that. Sentence 4: They convinced him not to. Choices: a. He decided against it. b. She nearly broke the door in her effort to get outside.
Output: a