Empirical Support for the Heckscher- Ohlin Model Was Weakest When

Multiple Choice

Empirical support for the Heckscher- Ohlin model was weakest when the study applied

A) all of the assumptions of the model except those regarding shipping costs.
B) all of the assumptions of the model except those regarding technology,shipping costs and gravity.
C) all of the assumptions of the model except those regarding technology,goods and shipping costs.
D) all of the assumptions of the model except that regarding technology.
E) all of the assumptions of the model.