Which One of the Following Correctly States the Difference Between

Which one of the following correctly states the difference between a block grant and a grant-in-aid?

A) Grants-in-aid can be spent for any purpose; block grants can be used only for narrow,specific purposes.
B) The national government gives far less in both block grants and grants-in-aid than it used to.
C) Block grants originated during the Civil War; grants-in-aid did not begin until the early 1900s.
D) Block grants are given by the states to the national government; grants-in-aid flow from the national government to the states.
E) A grant-in-aid can be spent only for specific purposes; block grants can be used for broad,general purposes.