According to Research Involving Business Customers, the Number-One Characteristic Found

According to research involving business customers, the number-one characteristic found to define a world-class salesperson is someone who:

A) manages to close the most number of sales in a given time period.
B) practices traditional selling.
C) personally manages the customer's satisfaction by being accountable for the customer's desired results.
D) uses cold canvassing for customer prospecting.
E) handles complaints in a timely and thoughtful manner by delegating work to other salespeople.