Michael & Peter's, a legal consultancy, discovers that some clients have either stopped, or greatly reduced, their work with the firm. The first step that Michael & Peter's should take to initiate a customer reacquisition strategy, is:

a. avoid relying on databases since they only provide overall purchase frequency data.

b. determine why their customers have stopped taking their services.

c. find the customer who is in risk of being lost.

d. concentrate on tuture stream of customer purchases since losing one customer is simply equivalent to losing that particular sale