Uergent!

What was a key to writing and ratifying the United States Constitution?

willingness to compromise on all sides

the impossibility of compromise

compromise by one group of delegates

refusal to compromise on any side

Use a method of what i call slash the trash, eliminate the ones that do not make sense at all. D doesnt make sense because if there was no compromise there was no change. So b and d are gone now its c and a you have left. A not everyone is going to compromise everyone has an opinion so C makes sense. So therefore your answer is C