Which of the Following Is True with Regard to Corporate

Which of the following is true with regard to corporate takeovers in the 1980s?

A) They were directly encouraged by an SEC ruling holding that commissions on stock transactions must be fixed, not negotiable
B) They were regarded as a very marginal new source of income on Wall Street
C) They created unusual opportunities for insider trading profits, as the value of a company's stock invariably rises when it becomes a takeover target
D) They led to collusive deals between company management and investors because company management was prohibited from any role in buying out their company