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: Airplane. Sentence 1: Chavez has always been scared of heights. Sentence 2: One day, he had to go on an airplane to Mexico. Sentence 3: He feared that the airplane would crash. Sentence 4: Chavez prayed nothing would happen and went on the airplane. Choices: a. Chavez was able to safely reach Mexico. b. There was no pain and now Ward is not afraid of the dentist.
Output:
a