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: 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: The Train is Cheaper. Sentence 1: Nigel was traveling to visit his aunt. Sentence 2: He was looking at flights but they were all too expensive. Sentence 3: Then he saw that train rides were much more affordable. Sentence 4: He bought his ticket and hoped for the best. Choices: a. For the rest of his life, Jim lied for his own benefit. b. Luckily the train ride was not too bad at all.
[A]: b

[Q]: Title: Jackie's Cookies. Sentence 1: Every evening, Jackie ate cookies after dinner. Sentence 2: Her favorite cookies were chocolate chip. Sentence 3: One day, she accidentally bought cookies with raisins. Sentence 4: She didn't enjoy the taste of those cookies at all. Choices: a. He then told her she really needed to stop chewing on her pens. b. Jackie decided to give the raisin cookies to her neighbors.
[A]:
b