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: Science Fair. Sentence 1: Simon made a poster for the Science Fair. Sentence 2: He left it in the garage for the colors to dry. Sentence 3: His cat found the poster. Sentence 4: The cat chewed up the corners of the poster. Choices: a. Simon presented the chewed up poster at the Science Fair. b. She was upset to see she was charged right away.
[A]: a

[Q]: Title: Happy Birthday. Sentence 1: Heathers mom's birthday is today. Sentence 2: Heather waited until the last minute. Sentence 3: She waited so long to get something she almost forgot. Sentence 4: Heather went to the store looking around. Choices: a. She would use furniture to block some of the outlets. b. She decided to get a bouquet of flowers for her mother.
[A]: b

[Q]: Title: Gas. Sentence 1: Jo's mom called her one morning, very early. Sentence 2: Sheepishly she asked for Jo's help. Sentence 3: She had run out of gas on her way to work! Sentence 4: Jo laughed it off and hurried to get her gas can. Choices: a. Then she went to bring her mom a few gallons of gas. b. I tried that and it was horrible, so I ate a hamburger instead.
[A]:
a