The correct answer is D, just explain, if u think it's C you are wrong and the answer will be reported

10. (2pt) What is the change in quantity demanded if price drops by $1? Price ($/unit) Income ($) Price of related good | Quantity demanded 10,000 7 22 12,000 28 10,000 2 20 8,000 18 Quantity demanded decreases by 2 unit. Quantity demanded changes by 3 units. Quantity demanded increases by 2 unit. None of the above