We Can Derive the Market Demand Curve for Gold Earrings

Multiple Choice

We can derive the market demand curve for gold earrings

A) only if the tastes of all gold earring consumers are similar.
B) by adding horizontally the individual demand curves of each gold earring consumer.
C) by adding vertically the quantity demanded of each gold earring consumed at each price.
D) by adding the prices each gold earring consumer is willing to pay for each quantity.