What Is the Main Difference Between International Businesses in Terms

What is the main difference between international businesses in terms of their approaches to international labour relations?

A) the degree to which labour relations activities are centralized or decentralized
B) the degree to which labour relations are formal or informal
C) the degree to which labour relations are given a high priority or a low priority
D) the degree to which labour relations are internally or externally managed
E) the degree to which labour relations are restricted or allowed