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.

[EX Q]: Title: Candy. Sentence 1: The boy bought some candy. Sentence 2: He hid it in his room. Sentence 3: His sister found the candy. Sentence 4: She took a big handful. Choices: a. The boy never noticed the missing candy. b. Sam kindly helps them through their problems.
[EX A]: a

[EX Q]: Title: Toad. Sentence 1: Anna found a big toad in the road outside her house. Sentence 2: She carried it inside and asked her mom to keep it. Sentence 3: But her mom explained that the toad would be happier outside. Sentence 4: Anna thought it over and decided her mom was right. Choices: a. She went back outside and let the toad hop away, free. b. She happily chatted for an hour.
[EX A]: a

[EX Q]: Title: Last minute shopping.. Sentence 1: Linda had been waiting all year for her summer vacation. Sentence 2: She had already purchased her plane ticket. Sentence 3: She was going to stay at a beachfront resort. Sentence 4: The day before her trip she packed her bag. Choices: a. She was so annoyed! b. She realized she needed to go out and buy a bathing suit.
[EX A]:
b