Teacher:In this task, you're given the title and three arbitrary sentences out of a five-sentence story. You are also given three additional sentence options, a, b, and c, that may or may not belong to the story. Your job is to pick the two options that seamlessly connect with the rest of the story; note that the selected choices may fit into the story at any point. Indicate your selected choices in order, i.e., as 'ab'/'bc'/'ac' and not as 'ba'/'ca'/'cb'. If options are equally plausible, pick the ones that make more sense.
Teacher: Now, understand the problem? Solve this instance: Title: I played several games of online chess last night. I had a 1400 rating at the beginning of my games. Now our ratings were switched on this bad chess night. Choices: a. He beat me four times in a row. b. My opponent had a 1300 rating. c. Don was able to get something better.
Student:
ab