You will be given a definition of a task first, then some input of the task.
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.

Title: Real Manicure. Sentence 1: Robbie worked as a lumberjack. Sentence 2: For his birthday, his wife gave him a gift certificate for a manicure. Sentence 3: Robbie didn't really want a manicure, but he went to make her happy. Sentence 4: When his lumberjack friends found out, they made fun of Robbie. Choices: a. At Christmas, Robbie gave his friends gift cards for manicures. b. They were sad that the restaurant closed, but they had fond memories.
Output:
a