Answer:
A. Older siblings teaching younger siblings how to ride a bike.
Explanation:
A research paper is fact and nothing but the fact. A research paper is just giving information about a topic. However, rhetorical questions are used to persuade the reader to believe or agree with something, mainly in a discursive essay; but in a research paper, you aren't persuading, you are educating.
Answer:
This made my day haha :) It's just before school so i was answering last minute things