New international trade theories are mostly referred as Post-Heckscher-Ohlin Theories because they were developed after the Heckscher-Ohlin Theory. They do not reject the Heckscher-Ohlin Theory; they improve it as of complementary trade theories. In other words, they try to overcome the weaknesses via relaxing the most inadequate assumptions of the Heckscher-Ohlin Theory. The correct answer is E.