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 Input:
Title: Snake Encounter. Sentence 1: Sally wasn't very familiar with snakes, and had never seen a wild one. Sentence 2: She and her cousin liked to jump from rock to rock in the river. Sentence 3: She was very scared when a snake appeared right below her. Sentence 4: Chris convinced her to stay calm while he moved the snake carefully. Choices: a. Every weekend, he decided to eat at the same restaurant. b. She was grateful, and rather proud of herself for being so calm.

Ex Output:
b

Ex Input:
Title: Vegetables. Sentence 1: The boy ate his vegetables. Sentence 2: His mother rewarded him. Sentence 3: The boy began to expect rewards. Sentence 4: The mother stopped rewarding the boy. Choices: a. In a few months, she was no longer afraid to go outside. b. The boy refused to eat vegetables.

Ex Output:
b

Ex Input:
Title: New Store Opening. Sentence 1: Lucy was opening up a soap shop. Sentence 2: She was rather nervous about it. Sentence 3: It took her a few months to get everything ready. Sentence 4: On opening night she finally opened the doors. Choices: a. To her delight, she got a handful of customers. b. There wound up being small, tasty taco place right around the corner!

Ex Output:
a