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: Dirty Dishes. Sentence 1: Maria came home from work and found a sink full of dirty dishes. Sentence 2: She decided to wash them even though they weren't hers. Sentence 3: In the middle of washing them, her son came down to the kitchen. Sentence 4: He added his dirty plate to the pile in the sink. Choices: a. Maria scowled and told him to wash his own dishes from now on. b. The next day, his eyes felt dry and irritated.
Output:
a