GM has learned which marketing lesson about customer value?

Multiple Choice

Existing customers do not spend as much as new customers since the former like the old products rather than the new ones new customers

like.

The buying experience, customer satisfaction, and customer retention can increase a firm's profits.

According to research, it is equally costly to acquire new customers and retain existing ones.

Unless a marketing promotion to retain customer loyalty can increase market share by at least $5$ percent, it is not worth the expenditure.

It is a lot easier to find new customers than to retain existing ones.