D. economic prosperity
the great potato famine left many irish in poverty causing them to migrate to america!
Civil Service Commission<span> was a government agency of the federal government of the United States and was created to select employees of federal government on merit rather than relationships.</span>
A. is a duty of congress. They can say a law is unconstitutional based in their views on the law but they cant declare one unconstitutional. But the President can declare a law unconstitutional and change it.
Its D - Most africans being transported to the US would likely die on the ships because of the extremely poor conditions before they even reached their deplorable fate.
hope this helps :)
