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: Strange Visitor. Sentence 1: Jen got ready to go to sleep. Sentence 2: She changed into her pajamas and walked into her room. Sentence 3: Once she landed on the bed, a lizard jumped behind her. Sentence 4: It crawled behind her back. Choices: a. Jen screamed and ran outside. b. If I end up having to buy another car, I will buy a Hyundai.
a