Which of the Following Is True in Regard to Outside

Which of the following is true in regard to outside directors?

A) The trend around the world is to introduce fewer outside directors.
B) In the United States, less than a half century ago, most boards were made up entirely or largely of outside directors.
C) Many U.S. firms are now favoring a board that is entirely made of people who are insiders due the need for people who can understand the increasing complexity of MNEs.
D) Academic research has failed to empirically establish a link between the outsider/insider ratio and firm performance.