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) 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 for only for specific purposes; block grants can be used for broad, general purposes.