I believe the answer is C.
Discrimination, fitting in.
One of the ways the legislative branch checks the executive branch is that the legislative branch has the power to impeach the president.
I am not 100% sure but I believe the answer is A
C) Individual States
A guiding principle of the Articles was to preserve the independence of the states. The Articles created a weak central government, therefore they only received the powers which previous colonies had recognized as belonging to the parliament.
Hope this helps :)
