The Factor Endowments and the HeckscherOhlin Theory, or simply the Heckscher Ohlin Theory, developed upon the weaknesses of the previous theories has some simplifying assumptions. Instead of examining them at the stage where the analysis stands, it’d be more effective to give them before starting to analyze the theory as a whole. The Heckscher-Ohlin Theory stands on twelve simplifying assumptions. The correct answer is " E ".