The following show the relationship between the price of A and the quantities of two other products , B and C , demanded .

                          100                            400                     400

                          120                            380                     420

26. Refer to the above data. Which of the following is most likely to be true?

A) B and C are both substitute products for A.

B) B and C are both complementary products for A.

C) C is a substitute for A; B is a complement to A.

D) C is a complement to A; B is a substitute for A.