Answer:
B) to describe the Chinese dishes commonly served at holiday meals.
Answer:
Subtopic
Explanation:
Look at the answer choices and see which ones can be eliminated.
Outline: this is basically a laid-out structure for how someone wants to write an essay, create a project, etc; it doesn't match the description, so it's wrong.
Main Idea: wrong because we want the less important subject <em>under</em> the main topic
Thus, the answer is subtopic.
Hope this helps!
B is the answer. That they were able to figure out where the scary noise was coming from