Which of the following is true regarding the sales life cycle?

a. As the sales life cycle become shorter, the analysis of the sales life cycle becomes increasingly important

b. The sales life cycle refers to the phase of the product's or service's sales in the market, from introduction of the product or service to decline and withdrawal from the market

c. The strategic pricing approach changes over the product or service life cycle

d. Both A & B

e. Borth A, B, and C