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.

[EX Q]: Title: Nightmare. Sentence 1: Stephanie awoke in the middle of the night to a door slamming. Sentence 2: She became very scared, thinking she had an intruder in her home. Sentence 3: Stephanie grabbed her pepper spray and tiptoed downstairs. Sentence 4: She noticed her back door was ajar and quietly walked over to it. Choices: a. She peered outside and saw her sleepwalking daughter roaming the yard. b. Tim saw his happiness improve significantly.
[EX A]: a

[EX Q]: Title: Blank Keycaps. Sentence 1: I purchased a high-end mechanical keyboard. Sentence 2: I thought it would be good for writing and for gaming. Sentence 3: I also ordered a nice set of blank keycaps for the board. Sentence 4: The caps made it difficult for me to type on the board. Choices: a. I ended up putting back on the stock caps, and loving the board. b. They stood up and left.
[EX A]: a

[EX Q]: Title: The Jungle. Sentence 1: Dave wanted to explore the jungle. Sentence 2: He was told to take insect repellant. Sentence 3: Dave thought he could do without it. Sentence 4: After the end of the day, he went to bed. Choices: a. But he couldn't sleep because of the mosquitoes. b. Ellie was too embarrassed to go to school that next day.
[EX A]:
a