In the Reality of Corporate Governance at the Turn of This

In the reality of corporate governance at the turn of this century,

A) boards of directors are often dominated by management-friendly insiders.
B) a typical board of directors often has relatively few outside directors who can independently and objectively monitor the management.
C) managers of one firm often sit on the boards of other firms, whose managers are on the board of the first firm. Due to the interlocking nature of these boards, there can exist a culture of "I'll overlook your problems if you overlook mine."
D) all of the above have been true to a greater or lesser extent in the recent past.