Which Is True of the Following? a White Knight

Which is true of the following? A white knight

A) Is a group of dissident shareholders which side with the bidding firm
B) Is a group of the target firm's current shareholders which side with management
C) Is a third party that is willing to acquire the target firm at the same price as the bidder but usually removes the target's management
D) Is a firm which is viewed by management as a more appropriate suitor than the bidder
E) Is a firm that is willing to acquire only a large block of stock in the target firm