Which of the Following Is NOT True

Which of the following is NOT true?

A) An extensive form representation usually provides more information than a normal-form representation of a game.
B) A normal-form game is most useful for sequential-move games.
C) The notion of perfect equilibrium is more useful in analyzing extensive-form games than normal-form games.
D) The notion of credible threats makes more sense in extensive-form representations than in normal-form representations of a game.