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: Blake's Balloon Blowout. Sentence 1: Blake wanted to throw a party, but didn't have much money. Sentence 2: He wanted to do something fun, though. Sentence 3: He saw an ad from someone throwing out thousands of balloons. Sentence 4: He blew up so many balloons that there was barely any room for people. Choices: a. His party was a hit with people getting lost in all the balloons. b. Looks like I'll have to cancel my plans for the weekend.
a