What special problems arise when evaluating performance in multinational companies? OA. The qconomic, legal, political, social, and cultural environments differ significantly across countries. OB. Availability of materials and skilled labour, as woll as costs of materials, labour, and infrastructure may differ significantly across countries C. Governments in some countries may impose controls and limit selling prices of products. D. Divisions operating in different countries keep score of their performance in different currencies. DE. Only B and C are correct F All of the above are correct