Besides its high cost, what is the other possible problem that test marketing is likely to face?

a$.$ The product's success may present a threat to other product extensions recently introduced by the company and thus spread its customers th

b$.$ It exposes the new product and its marketing mix to competitors before its introduction. Thus, the element of surprise is lost.

c$.$ Consumers may perceive the sales promotion, pricing, or advertising campaign as overzealous hard sell or even unfair trade practices.

d$.$ The decision to commercialize a product includes ordering materials and equipment.