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 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: The Gift. Sentence 1: Tammy's aunt sent her money for her birthday. Sentence 2: Tammy's mother brought her to the store to buy her a gift. Sentence 3: Tammy began to look at all the toys and games. Sentence 4: She couldn't decide which to choose. Choices: a. Shravan and his dog went inside to take a nap. b. Tammy decided to save her money.
Output:
b