The correct answer is C. Outsourcing labor
Step-by-step explanation
Many American companies reached the global level by using job outsourcing, this means companies do not hire Americans but foreigners, this allows companies to have branches in different countries, especially in countries where market is just emerging which imply labor costs are lower as standards of living are lower in these countries, this allows the companies to have their products overseas and decrease the wages paid to their employees. Because of this, outsourcing labor is key to compete on a global level.