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.

Example Input: Title: Moving Day. Sentence 1: It was the end of an era. Sentence 2: John and Jim were moving out of their old place. Sentence 3: They had lived their all throughout college. Sentence 4: The move was bittersweet. Choices: a. The new house was going to be great. b. Stan was happy that he had found love.
Example Output: a

Example Input: Title: Mark's meal. Sentence 1: When lunchtime rolled around Mark's stomach was very grumbly. Sentence 2: He hadn't eaten all day and was quite hungry. Sentence 3: But he brought no food from home to eat. Sentence 4: One of his workmates though invited him out to lunch. Choices: a. They had chicken tikka masala. b. And they danced all night better than he did with his broom.
Example Output: a

Example Input: Title: Rebecca breaks a tooth. Sentence 1: Rebecca is playing in a soccer game. Sentence 2: She is playing very hard trying to win the game. Sentence 3: She is about to make a goal for her team. Sentence 4: When she gets pushed down hard by another player. Choices: a. Sometimes I wish he still did that for me. b. Rebecca falls to the ground so hard it breaks her tooth.
Example Output:
b