Producers of a strong brand sometimes sell it to dealers only if the dealers will take some or all of the rest of its line. This is known as​ full-line forcing. Which of the following statements is true regarding​ full-line forcing?
A.It is always illegal.
B.It is always legal.
C.It may or may not be legal.
D.It is only legal in New​ York, California and Texas.
E.It is only illegal in Europe.