Answer:
C) Heckscher-Ohlin theory.
Step-by-step explanation:
The Heckscher–Ohlin model (H-O) was developed by Eli Heckscher and Bertil Ohlin and studies the comparative advantages that different countries possess when engaging in foreign trade.
These economists extended David Ricardo's model about trade and concluded that countries will engage in trading the products they produce using their abundant factors of production. E.g. countries with abundant land and labor will probably export agricultural products, while countries with abundant capital will export industrialized products.