Your question is not properly arranged, please let me assume this to be your question:
Since it can cost five times as much to acquire a new customer than to service an existing one, it is important for salespersons to:
A) Exclusively focus on maximizing profits.
B) Generate as many leads as possible through cold calling.
C) Implement the endless chain approach.
D) Build and maintain long-term relationships
ANSWER: The most correct option is D. Build and maintain long-term relationship.
Explanation: a salesperson is one that markets the companies product to persons that are assumed to be a prospective customer.
Convincing a prospect to buy the companies product is always a difficult task, when compared to the cost of servicing an existing customer. Due to this, a sales person has to hold its customer very tight, so as not to loss the customer to another company. The sales person can only achieve this if he/she has established a cordial relationship with the customer.
Long term relationship with customers is very important in achieving sales target, and increasing sales. Because the customers of today that are followed up are more likely to be the customers of tommorow.