In American Needle,Inc

In American Needle,Inc.v.National Football League,the case in the text,the U.S.Supreme Court held that:

A) necessity of cooperation transforms concerted action into independent action.
B) concerted action under Section 1 turns on whether the parties involved are legally distinct entities.
C) the conduct at issue was concerted activity under the Sherman Act that was subject to Section 1 analysis.
D) the interest in maintaining a competitive balance among athletic teams was not legitimate or important.