In my opinion, the 16th Amendment has accomplished a lot because without it there wouldn't be any growth in the United States. With the collection of tax from the citizens, we are able to keep armies, improves resources production, enforce laws and etc...
The major policy "grouping" of President John Kennedy in the US was "<span>C. the New Frontier," since this had a lot to do with making America more competitive against the USSR. </span>
The answer is C. Slaves maintained religious and cultural traditions from Africa.
I hope this helps...Have a great day! :)