Which was a main belief of the anti-federalists?

A. The Constitution is good as it is, it creates three branches of government to limit power
B. Thought a really strong central (national) government was best to band the states together
C. Opposed parts of the Constitution that limited the powers of the states
D. A strong central government in needed to control states that won’t cooperate

C

Explanation:

The Anti-Federalists opposed the ratification of the 1787 U.S. Constitution because they feared that the new national government would be too powerful and thus threaten individual liberties, given the absence of a bill of rights.

A/ the belief that nations could prevent future conflicts through self- determination is your answer.

Note:

nations could prevent future conflicts: "...and particularly that it be made safe for every peace-loving nation... wishes to live its own life, determine its own institutions, be assured of justice and fair dealing by the other peoples of the world as against force and selfish aggression." (emphasizes added)

hope this helps