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: Cheap Thrills. Sentence 1: Sia didn't have any cash. Sentence 2: Her boyfriend had come over earlier. Sentence 3: They danced all through her house. Sentence 4: Sia was very happy. Choices: a. His car engine is blown up! b. She decided it was okay she didn't have money to go out.
b

Title: Tiara And The Cat. Sentence 1: Tiara doesn't like cats. Sentence 2: Tiara's friend tells her that cats are great pets. Sentence 3: Tiara decides to get a cat after hearing this. Sentence 4: Tiara gets a kitten from a local shelter. Choices: a. Tiara loves cats now. b. When I went back to the food truck, they were out of what I wanted.
a

Title: Hairy. Sentence 1: A little baby was born. Sentence 2: Her parents saw she had hair all over her. Sentence 3: They asked the doctor if this was normal. Sentence 4: The doctor said it was. Choices: a. They are working on new music. b. It eventually fell off.
b