Which of the following ideas from the baron de montesquieu influenced the founding fathers ? ?
separation of powers ,
natural law,
social contract ,or
declaration of independence

It was primarily on the idea of "separation of powers" that Montesquieu had the most influence on the Founding Fathers, since he believed this was a crucial step in ensuring that a central government did not become too powerful. 

If i’m not mistaken your answer should be the freemen’s bureau started them. i really hope i could ! good luck