Respuesta :
Screening. This is the process of gathering a focus group, distributing the product and gathering the opinions of the group before selling the product
Answer:
D) concept testing
Explanation:
During the concept testing phase the new product idea or concept is tested or surveyed to determine if there is any potential market for the new product. The concept testing phase is done at an early stage where there is no prototype product yet, and it is much more limited than product tests carried on at later stages.