<span>1) Decide what you want to learn from administering your questionnaire.
2) Plan questions that will help you get the information you need.
3) Use closed-ended questions to gather specific answers.
4) Use open-ended questions to solicit feedback.
5) Ask questions in such a way as to avoid confusion and bias.</span>
The overlap lies in the fact that both essays present an opinion on an idea with the goal showing deep understanding and personal thoughts regarding an entity, with the difference lying in argumentative essays also showing the second side to something, whereas persuasive essays only show one.
I’m not sure the context to this question, but not everyone had synesthesia so my guess is the answer is C, understand synesthesia.
