All Else Constant,if Butter and Margarine Are Substitute Goods,then as the Price

Multiple Choice

All else constant,if butter and margarine are substitute goods,then as the price of butter rises,

A) the demand for margarine will fall
B) the quantity of butter demanded will fall
C) the demand for butter will fall
D) the demand for butter will rise
E) butter and margarine will become complementary goods,provided that butter is a normal good