Answer:
Providing grants-in-aid
Explanation:
Grant-in-aid is a money transferring aid in which money is transferred for a specific purpose. The money is transferred from the federal government to the other.
There are three types of grants-in-aid:
This a powerful tool of the federal government as through this, the federal government controls the state and gets the desired actions from them.
So, the correct answer is grant-in-aid.