A company that builds a factory in another country to hire workers for less money is trying to save on its:

The correct answer is D. human resources.

Explanation: By building a factory in another country to hire workers for less money, the company is primarily aiming to reduce its labor costs, which relate to human resources. This strategy is often referred to as outsourcing or offshoring, where companies look for cheaper labor markets to save on expenses. If you have more questions or need further assistance, feel free to ask!