Answer:
Letter A is correct. Test marketing.
Explanation:
Test marketing should be performed immediately after approval of the final product. This is an important tool for the organization to assess the compliance and viability of a new product when it is launched in a competitive market and real consumers.
There are several ways to conduct a marketing test. In one of them, the organization can make the product or marketing campaign available to a limited base of consumers aware or not of their participation to evaluate their answers and questions about the new product.