Answer:
The answer is option (E) Test marketing.
Step-by-step explanation:
Test marketing is a product development stage during which a product and its projected mode of marketing are exposed to, or test run on a carefully selected sample population.
The purpose of such tests is to determine consumer reaction or response to the product. The results of the test would enable the shop chain or stores to decide whether to adopt or reject the marketing strategy before a full-scale launch of the product.