You will be given a definition of a task first, then some input of the task.
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: Doctor Visit.. Sentence 1: Agnes and Allen were planning on marrying. Sentence 2: They decided they did not want to start a family soon. Sentence 3: They made an appointment together at a local women's clinic. Sentence 4: With the medical personnel there they discussed family planning. Choices: a. They chose a birth control method that made the most sense for them. b. Tom kept using the phone with a cracked screen.
Output:
a