Please select the incorrect statement

$1$ point

a$)$ When a company lowers its customer defection rate, average customer relationships last longer and profits climb

b$)$ Retaining customers and growing their value is extremely pro$$table$,$ as compared with business models which lose a high proportion of customers every year.

c$)$ Customer acquisition is expensive. It$,$ therefore, pays to retain customers for as long as possible.

d$)$ Companies with many customers do not need to use their resources to retain customer. Rather that effort will be better directed at winning new customers.