If the price of a dress is three times the price of a pair of shoes, then a pair of shoes contributes
A.
a. exactly one-third as much to GDP as does a dress.
B.
b. more than one-third as much to GDP as does a dress.
C.
c. less than one-third as much to GDP as does a dress.
D.
d. exactly one-fourth as much to GDP as does a dress.