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.

Let me give you an example: Title: Marcus Buys Khakis. Sentence 1: Marcus needed clothing for a business casual event. Sentence 2: All of his clothes were either too formal or too casual. Sentence 3: He decided to buy a pair of khakis. Sentence 4: The pair he bought fit him perfectly. Choices: a. Marcus was happy to have the right clothes for the event. b. He left in a huff for having his ideas mocked.
The answer to this example can be: a
Here is why: Marcus is buying clothes for a business event and not presenting an idea.

OK. solve this:
Title: Bravery. Sentence 1: Jack was throwing a Frisbee around with Terry. Sentence 2: A gust of wind lifted the Frisbee much higher than expected. Sentence 3: Terry groaned as the Frisbee planted itself in a tall tree. Sentence 4: Jack didn't mind, and climbed all the way to the top to retrieve it. Choices: a. Paul now really regrets his actions. b. Terry thought Jack was extremely brave for doing so.
Answer:
b