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: One day of Starvation. Sentence 1: Kenny received his braces today. Sentence 2: The orthodontist advised him not to eat any solid foods. Sentence 3: Kenny decided to drink smoothies for the entire day. Sentence 4: However, he felt hungry for the whole day. Choices: a. She made him guess who sent it. b. He passed out when he came home since he was starving.
a