Because They _______________,The Product Life-Cycle Theory and Knickerbocker's Theory of FDI

Multiple Choice

Because they _______________,the product life-cycle theory and Knickerbocker's theory of FDI tend to be less useful from a business perspective.

A) are descriptive rather than analytical
B) have not stood the test of time
C) are not widely known
D) have not been empirically validated
E) have not been widely used