The Choice of Structure for Managing an International Business Is

The choice of structure for managing an international business is generally based on choices concerning which set of the following three factors?

A) level of vertical differentiation; level of integration; and degree of formalization, specialization, standardization, and centralization
B) level of integration; level of horizontal differentiation; and degree of formalization, specialization, standardization, and centralization
C) hierarchy, global product, and global divisional
D) level of vertical differentiation; level of horizontal differentiation; and degree of formalization, specialization, standardization, and centralization