The purpose of defensive strategies is to

a. weakens the impact of any attack that occurs, to increase capital reserves.

b. lowers the risk of being attacked, to weaken the impact of any attack that occurs, and to influence challengers to aim their efforts at other rival.

c. pressure challengers to aim their efforts at other rivals, to hedge all financial transactions, and to increase capital reserves.

d. lowers the risk of being attacked, to hedge all financial transaction, and to pressure challengers to aim their efforts at other rivals.

e. help protect a competitive advantage, to deploy competitive assets, and to build a sustainable competitive advantage.