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.

Example Input: Title: Going to Ma's House. Sentence 1: Her grandmother was finally here to pick her up. Sentence 2: Tina burst through the front door before Ma even got out the car. Sentence 3: Tina ran to her grandmother and gave her a big hug. Sentence 4: To her dismay, Tina had to wait because Me went inside. Choices: a. She went to her own bedroom to prepare for bed. b. After an hour of hellos Tina and Ma finally left for their sleepover.
Example Output: b

Example Input: Title: Spoiled milk. Sentence 1: Kelsi went downstairs for breakfast. Sentence 2: She poured a bowl of cereal. Sentence 3: She then got the milk. Sentence 4: But after pouring it she saw it was thick and curdled. Choices: a. A decade later, he was directing Hollywood features. b. Kelsi had to throw it out and get another one.
Example Output: b

Example Input: Title: Reporting the News. Sentence 1: Rob was a news reporter for a radio station. Sentence 2: One day, he was driving into work when a fire truck zoomed by him. Sentence 3: He turned around to follow the truck, and arrived at a huge fire! Sentence 4: He called his editor right away and reported the story. Choices: a. After only 2 months, he proposed to her. b. Rob was happy to get a scoop for his station!
Example Output:
b