Which of the following is NOT a typical focus in CLV$-$based management? $($CLV: customer lifetime value$)$

a$.$ Enhance the share of customers' wallets.

b$.$ Reallocate marketing resources among customer segments.

c$.$ Make accurate predictions of the customer retention rate and discount rate.

d$.$ Assess marketing strategy to improve new customer acquisition and existing customer retention.

e$.$ All of the listed options are typical focuses in CLV$-$based management