Which of the Following Is an Assertion of the Heckscher-Ohlin

Which of the following is an assertion of the Heckscher-Ohlin model?

A) Factor endowments determine the technology that is available to a country, which determines the good in which the country will have a comparative advantage.
B) An increase in a country's labor supply will increase production of both the capital-intensive and the labor-intensive good.
C) Factor price equalization will occur only if there is costless mobility of all factors across borders.
D) The wage-rental ratio determines the capital-labor ratio in a country's industries.
E) In the long run, labor is mobile and capital is not.