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: The Roommate. Sentence 1: Nick was trying to buy a house. Sentence 2: He lived with a roommate that he couldn't trust. Sentence 3: His stuff always ended up missing from his bedroom. Sentence 4: He knew it had to be Nick so he decided he would move out. Choices: a. He found a place and moved out as fast as he could. b. The goldfish got skinnier and healthier.
[A]: a

[Q]: Title: Geometry Test. Sentence 1: Kyle has a geometry test in the morning. Sentence 2: He thought he knew all the formulas. Sentence 3: When he got to the test, his mind went blank. Sentence 4: He was not able to answer any questions. Choices: a. He had to turn his paper in blank. b. He didn't answer it.
[A]: a

[Q]: Title: Strange Fruit. Sentence 1: Corrin had terrible bellyaches. Sentence 2: She loved eating greasy cheeseburgers and corn dogs. Sentence 3: She took her mom's advice, and got some veggies and fruit. Sentence 4: Soon enough, her bellyaches quit and she was regular. Choices: a. When her wedding day came, no one could believe how great she looked. b. She never touched another greasy burger again.
[A]:
b