Teacher: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.
Teacher: Now, understand the problem? Solve this instance: Title: Know your boundaries. Sentence 1: James had a huge fear of heights. Sentence 2: He would not ever close to the edge of tall buildings. Sentence 3: Once, he had a panic attack when using a glass elevator. Sentence 4: They had to call the medic to help him calm down. Choices: a. Now, James uses the stairs every time. b. He worries what his girlfriend will think if he's outgoing.
Student:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
a