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: Learning to dance. Sentence 1: I really wanted to learn how to dance in college. Sentence 2: So I called up a friend of mine to teach me. Sentence 3: He was a professional dancer and was very good. Sentence 4: He taught me everything he knew about dancing. Choices: a. It made me better and now I am also a really good dancer. b. I'm really enjoying playing the drums now.
Example Output: a

Example Input: Title: Slugger. Sentence 1: Mark was never a good baseball player. Sentence 2: He practiced everyday with his dad. Sentence 3: No matter how much he tried, he never got better. Sentence 4: He went to his Saturday baseball game feeling hopeless. Choices: a. When it was his turn to bat, he knocked it out of the park! b. Mary screamed and ran inside the warm house.
Example Output: a

Example Input: Title: Couch Protection. Sentence 1: I wear shorts and skirts a lot. Sentence 2: On the couch with my feet up, the underside of my legs are exposed. Sentence 3: That is when the kitty will attack my legs and inner thighs! Sentence 4: That is definitely somewhere I do not want a scratch. Choices: a. Allie needed a new car anyway. b. So now I use a blanket and tuck it in under my butt for protection.
Example Output:
b