All but one of the following are assumed to remain the same while drawing an individual’s demand curve for a commodity. Which one is it?

Q.       All but one of the following are assumed to remain the same while drawing an individual’s demand curve for a commodity. Which one is it?

A.           The preferences of the individual  

B.            His monetary income

C.            The price of the commodity under consideration

D.           The prices of other goods

Answer: The price of the commodity under consideration