A Change in Demand Refers To

A change in demand refers to:

A) a movement along the demand curve.
B) a change in a non-price variable in the demand function resulting in a shift in the demand curve.
C) a change in quantity demanded because of a change in price.
D) movement along the demand curve due to a change in income.
E) movement along the demand curve due to a change in the price of a related good.