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.

Input: Consider 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.

Output: a

Input: Consider Input: Title: The Runaway Cat. Sentence 1: When Jo opened her door to go to work, her cat Mac escaped outside. Sentence 2: As Jo attempted to catch Mac, the cat ran away. Sentence 3: Jo chased after Mac until the cat climbed up a tree. Sentence 4: Jo climbed up the tree and grabbed Mac. Choices: a. Jo carried Mac back into the house and went to work. b. The waiter apologized even though it was Tom's fault.

Output: a

Input: Consider Input: Title: The Heart Attack. Sentence 1: Dana was visiting her grandmother. Sentence 2: The grandmother started having a heart attack. Sentence 3: Dana was scared but helpful. Sentence 4: She called for an ambulance and kept her cool. Choices: a. He went to the whiteboard and wrote his name to start the day. b. Dana was able to help her grandmother as best she could.
Output: b