Suburban Systems, Inc

Suburban Systems, Inc., sells and services residential and commercial central heating and air conditioning systems. The company has decided to improve its financial performance by raising prices for customers who demand extraordinary amounts of post-sale service support. This tactic would be consistent with which method of increasing profitability per customer?

A) Acquiring new customers of the right type.
B) Enhancing the profitability of existing customers.
C) Improving retention of desirable customers.
D) None of the above.