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: All About a Boy. Sentence 1: Rachael and Kristy were best friends. Sentence 2: Rachael was dating a boy named Mark. Sentence 3: Mark broke up with Rachel for no reason. Sentence 4: The next week Mark and Kristy started dating. Choices: a. Impatient Agnes ended up waiting much longer than ten minutes. b. Rachael and Kristy are no longer best friends.
[A]: b

[Q]: Title: Barbecue. Sentence 1: The man wanted to have a barbecue. Sentence 2: He invited lots of friends over. Sentence 3: He bought lots of meat. Sentence 4: It poured down rain on the day of the barbecue. Choices: a. The man had to cancel the barbecue. b. Her mom went to the park and found her.
[A]: a

[Q]: Title: The Bad Haircut. Sentence 1: Andrew needed a new haircut for work. Sentence 2: He didn't have much money so he was trusting a cheap shop. Sentence 3: Unfortunately, the barber totally butchered the cut. Sentence 4: Andrew consulted his wife with the disastrous haircut. Choices: a. Luckily she was able to fix it up for work. b. Instead she began storing the trash in her storage unit.
[A]:
a