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: Shelter. Sentence 1: Nate had had a huge fight with his parents. Sentence 2: He decided to run away from home. Sentence 3: On the streets he realized he had no plans and had to find a shelter. Sentence 4: Luckily, they welcomed him in and gave him a meal and a bed. Choices: a. He felt bad for lying but at least it ended the fight quickly. b. The next day they helped him reunite with his family.
[A]: b

[Q]: Title: The Love Letter. Sentence 1: Kevin was playing a joke on his sister. Sentence 2: He wrote a love letter and signed it from her crush. Sentence 3: Kevin slipped the note in her backpack. Sentence 4: His sister read the note. Choices: a. She recognized Kevin's handwriting and was mad at him. b. She made Kennedy help her clean the dresser.
[A]: a

[Q]: Title: The Blue ball. Sentence 1: It was time to play games with my friends. Sentence 2: We had four balls to play with. Sentence 3: The best was the blue ball. Sentence 4: Unfortunately, my friend Tim wanted to play with it. Choices: a. He had been using my conditioner and thought it was shampoo. b. We both decided to compromise and share the blue ball.
[A]:
b