The correct answer for the given statement above would be option C. A clause used as the object of a preposition is called a noun clause. The object of the preposition will always be a noun. Therefore, the only clause that is also used as the object of a preposition is only the noun clause.
Answer:
D. Explain something
Explanation:
These are all examples of authors that are trying to explain something. Show how something is done or how something is correctly used.
I hope this helps
Federalists believed that only a powerful government could safeguard liberty.