If Porter's theory is correct, we would expect his model to predict the pattern of international trade that we observe in the real world. This means that countries should be
O exporting in those industries where the four components of the diamond are not favorable.
O exporting products from those industries where all four components of the diamond are favorable.
O importing products from those industries where all four components of the diamond are favorable.
O both importing and exporting plucts from those industries where all four components of the diamond are favorable.