Which of the Following Ways Are Employed by Defending Companies

Which of the following ways are employed by defending companies to fend off a competitive attack?

A) Remain steadfast to current product features and models to ensure resources are not diverted toward unproductive efforts.
B) Exclude volume discounts or better financing terms from the strategic response in order to maintain current profitability levels.
C) Gain product line exclusivity to force competitors to use other distributors.
D) Trimming the length of warranties to save money.
E) Stay away from competitor's clients since their loyalty will not allow them to switch.