Lorraine belongs to a national consumer panel created by a market research company. She regularly receives samples of new products from a variety of firms and fills out questionnaires about the products. The national consumer panel Lorraine is part of is engaged in
a. premarket testing.
b. product launch.
c. test marketing.
d. product development.
e. concept testing.

a. premarket testing

Explanation:

Premarket Testing involves the testing of product to see how well it fits into the market, its functionality, as well as how safe it is for general use, in order to make any necessary adjustment where needed, before the actual launching of the product to the general public for consumption.

Premarket testing is usually conducted before a product is released into the market.

The national consumer panel that Lorraine belongs to is engaged in premarket testing, going by the information given in the question above.