<span>The answer is Letter D. It is written in a tone that is appropriate for an explanatory essay than the other letters. Since the letters a,b,c, is informal for an explanatory essay. Letter D. explains the Neolithic Revolution with formality and proper use of words, than the other letters.</span>
The link is here I could attach it
Ku klux klan.www.key.com
Answer: Ask
Explanation: Give me the brainiest