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: Vocabulary. Sentence 1: Tom was a good student. Sentence 2: He only had one weakness. Sentence 3: His vocabulary needed to be improved. Sentence 4: Tom read books by the greatest leaders and thinkers of all time. Choices: a. After examination he found that his wrist was sprained. b. Tom slowly increased his vocabulary to his satisfaction.
Student:
b