(17
(Choose 1 answer)
Ann and Ben are the only two demanders of coconut jelly. Each month, when the price is $10 per, Ann buys six portions and Ben buys four portions he buys four portions. If the price is $15, Ann buys four portions and Ben buys two portions. Which of the following points is belong to the market demand curve?
A. quantity demanded = 10; price = $20
B. quantity demanded = 20; price = $10
C. quantity demanded = 10; price = $10
D. quantity demanded = 20; price = $20
