Two goods, X and Y, are said to be complementary when?
-
A.
A fall in the price of X raises the demand for Y -
B.
A fall in the price of X causes a fall in the demand for Y -
C.
A fall in the price of X does not affect the demand for Y -
D.
A rise in the price of X does not affect the demand for Y -
E.
The two goods are competitive.