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.
Q: Title: Literacy. Sentence 1: My neighbor was illiterate. Sentence 2: He asked me to teach him how to read. Sentence 3: I started by teaching him the alphabet and spelling. Sentence 4: He went on to read children's stories and nursery rhymes. Choices: a. Now, he proudly reads newspapers and magazines. b. I hung up the phone on him.
A:
a