Answer:
The Net Promoter Score measures: (A) the degree to which a viewer promotes the product, (C) satisfaction and its (D) loyalty.
Explanation:
Net Promoter Score or NPS is a variety of index that is given to the customers of a product or service by the brands to know how they feel about the product and the brand. Primarily, the NPS is concentrated on understanding how much the customer is willing to promote or recommend the company's product or service to others. Additional fields that the NPS targets are customer satisfaction and how much the customers are loyal to the brand.
Hence, alternatives A, C, and D are correct for the Net Promoter Score.