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.

Title: Clown. Sentence 1: Tom was looking forward to Halloween. Sentence 2: He was thinking of a good costume. Sentence 3: He wanted something fun and yet a little bit scary. Sentence 4: Tom decided to go as a clown. Choices: a. He received many compliments on his great costume. b. That way, she knew they'd go to good use.
a

Title: Order taking too long. Sentence 1: Tina ordered a sub. Sentence 2: It was fast food. Sentence 3: But it was taking too long. Sentence 4: Tina then got angry. Choices: a. So she complained to management. b. It took her over a year to get over it and date someone else again.
a

Title: Coke. Sentence 1: My former coworker used to be a coke addict. Sentence 2: She went to NA and quit for several years. Sentence 3: A year ago she started asking me for loans of money. Sentence 4: I loaned her money, until I found out she was back on coke. Choices: a. I stopped loaning money and urged her to get help. b. Soon, he let his grandma go and surrendered.
a