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 does not connect with the rest of the story, indicating your choice as 'a' or 'b'. If both sentences are plausible, pick the one that makes less sense.

Title: What's A Hot Tub Without Heat?. Sentence 1: It was the middle of December and Scott was freezing. Sentence 2: He decided to heat of up his jacuzzi and warm up. Sentence 3: After about twenty minutes he hopped in the hot tub. Sentence 4: It felt like a thousand needles were piercing his skin. Choices: a. He quickly realized the heat had gone out and the water was freezing. b. The network had great success with their new starlet.
b