Answer:
The correct answer is letter "E": Voice-of-customer.
Explanation:
The voice-of-customer poll is helpful for firms to find out what the point of view of their customers is. This type of poll allows companies to know in deep the level of satisfaction with the products being offered and what the perception of the customers is based on the product provided by them. With this feedback, firms can make adjustments to provide clientele what they are looking for, which may increase the company revenues.
