The anti federalist opposed the ratification of the constitution because the new constitution a: didn't expand federal power enough b: was difficult for the average person to understand c: didn't have a bill of rights that would guarantee freedom d: divided the nation into north and south

the answer is C: didn't have a bill of rights that would guarantee freedom
Not wanting the government to have too much power is the Anti-Federalist's core belief.
The bill of right would provide the citizens which regulations that guaranteed us with basic freedom without intervention from the Government.