Answer:
a. why these customers' needs should be satisfied.
Step-by-step explanation:
The basic purpose of a business is to identify or create a need in the market they want to work in and try to fulfill those needs and create a demand for their products and services.
While doing all of this, the company needs to think of business level strategies that would be based on who the customer is, what his needs are and how these needs will be satisfied.
The question of why the needs of the customer must be satisfied does not stand in the context of making business strategies.