In developing a customer relationship management $($CRM$)$ program, the $$share$$ of customer term refers to what?

Question $2$ options:

A$)$

lifelong earnings of a customer

B$)$

percentage of time spent on acquiring the customer$$s loyalty

C$)$

share of a customer$$s income that is spent on a particular product

D$)$

potential value that could be added to a given customer$$s lifetime value