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: Jessie's 40th. Sentence 1: Jessie's birthday was coming up the following Monday. Sentence 2: She told all her coworkers about it as she headed out. Sentence 3: Jessie made a point of telling everyone none of them were invited. Sentence 4: She thought they'd understand she was only joking. Choices: a. The next day we had the screen replaced. b. Jessie didn't like her boss's early present of a pink slip.
Output:
b