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: Shelter. Sentence 1: Nate had had a huge fight with his parents. Sentence 2: He decided to run away from home. Sentence 3: On the streets he realized he had no plans and had to find a shelter. Sentence 4: Luckily, they welcomed him in and gave him a meal and a bed. Choices: a. He felt bad for lying but at least it ended the fight quickly. b. The next day they helped him reunite with his family.
Example Output: b

Example Input: Title: Basketball Game. Sentence 1: A couple of Mormons challenged strangers to a basketball game. Sentence 2: The others accepted. Sentence 3: The Mormons were exceptionally good at the game. Sentence 4: They beat the other guys fairly easily. Choices: a. The other guys were impressed and it sparked a conversation. b. Lance broke his hand and had to go to the hospital.
Example Output: a

Example Input: Title: Drive and Talk. Sentence 1: Max and Sam drove in silence, knowing they had things to discuss. Sentence 2: Finally Max broke the silence and they started to finally communicate. Sentence 3: They drove around DC for hours as they talked through their issues. Sentence 4: By the end of the night, they had driven 8 hours and 500 miles. Choices: a. Most importantly, they had opened doors for future communication. b. Jenny paid the first month's rent on the apartment and moved in.
Example Output:
a