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: Texting my friends. Sentence 1: I texted my friends way too much last month. Sentence 2: I completely lost track of my texts and sent way too many. Sentence 3: My parents got very mad at me for doing that. Sentence 4: Next month they are going to keep track of my texting. Choices: a. I really need to pay better attention of my available texts. b. Gregory made a lot of friends at his new school.
Output:
a