Detailed Instructions: 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.
Problem:Title: Japan was building an Empire in Asia. Japan needed to get America out of the Pacific. Japan decided on a pre-emptive strike. Choices: a. The United States didn't support this. b. Luckily his mom answered them all and made him much less afraid. c. On December 7th Japan launched a surprise attack.
Solution:
ac