You will be given a definition of a task first, then some input of the task.
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: A Trip to the Bank. Sentence 1: I set out to walk to the bank yesterday. Sentence 2: The shortest route was blocked because the road was closed. Sentence 3: I had to walk three blocks out of my way. Sentence 4: I finally arrived at the bank. Choices: a. I loved them and wore them for months. b. I discovered a more scenic route home.
Output:
a