If the price of a candy bar goes from $1 to $2 and the quantity demanded goes from 1000 to 750 which of the following is true?
A. This suggests that this product is a complimentary good.
B. This suggests that this product is a substitute good.
C. This product has a an elastic demand curve.
D. This product has an inelastic demand curve.
E. This product is an inferior good.