Answer: Direct foreign investment
Explanation:
The direct foreign investment is one of the investment process that helps in controlling the business ownership and in this the investment is basically create by one organization in some other country or location.
The economic development and the easy international trading are the main benefit of the direct foreign investment.
According to the given scenario, the Oldhust corporation is one of the electronic company that basically bought the other electronic firm in the other country and this example is refers as the direct foreign investment.
Therefore, Direct foreign investment is the correct answer.