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.

Input: Consider Input: Title: Koala. Sentence 1: Ky wanted a koala for a pet. Sentence 2: She begged her parents incessantly. Sentence 3: But they had to tell her that koalas made bad pets! Sentence 4: Ky was sad, but finally she understood. Choices: a. Soon she decided on a dog instead! b. Evan was fully dressed.

Output: a

Input: Consider Input: Title: The Baller. Sentence 1: Kevin plays basketball. Sentence 2: He started playing at a very young age. Sentence 3: Throughout high school, Kevin was very good. Sentence 4: He received a scholarship to play for The University of Kentucky. Choices: a. Now MJ is single. b. Now, Kevin plays professional ball and gets paid for playing the game.

Output: b

Input: Consider Input: Title: Chelsea's Landscaping. Sentence 1: Chelsea wanted to update her yard. Sentence 2: She bought a bunch of plants to put in the flower beds. Sentence 3: She worked hard for hours to plant them. Sentence 4: The result was beautiful. Choices: a. Chelsea smiled every time she looked at her yard. b. Once she got to 4 miles straight, she signed up for a 5k.
Output: a