What change in customer retention results from an increase from 5 to 10 years of an average customer life?

Question

Quizplus · Accepted Answer

An increase from 5 to 10 years of an average customer life represents a doubling of the customer's lifespan. Assuming all other factors remain constant, this could lead to a significant increase in customer retention. The increase in customer lifespan by 100% should lead to a corresponding increase in customer retention by at least 10%. Therefore, the answer is C, an increase of 10%.

What Change in Customer Retention Results from an Increase from 5