In the Case in the Text,Paramount Communications,Inc

In the case in the text,Paramount Communications,Inc.v.Time,Inc. ,what rule expansion did the Supreme Court of Delaware create?

A) A board may oppose a hostile takeover as long as it had a preexisting,deliberately conceived corporate plan justifying its opposition.
B) A board may oppose a hostile takeover as long as it has reasonable grounds for believing that a danger to corporate policy and effectiveness existed.
C) A board may oppose a hostile takeover as long as the defensive measure adopted was reasonable in relation to the threat posed.
D) A board may oppose a hostile takeover when there is a "better deal."