Teacher: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.
Teacher: Now, understand the problem? Solve this instance: Title: Rubix Cube. Sentence 1: My son has a rubix cube. Sentence 2: He could not solve the puzzle. Sentence 3: I tried to help him out. Sentence 4: Neither of us could figure it out. Choices: a. We could not solve the puzzle. b. Everyone teased her and said she was probably going to be a teacher.
Student:
a