Technically Speaking The Absolute Answer To Complete Your Statement Is
C : Setting . The Answer Is Setting Because It Says The World In Which The Characters Of A Story Move. The Setting Is Where A Story Takes Place So Therefore It's Setting.
I Really Hope This Helps You.
I agree with the other Kidd that true
The greatest common factor of them all is six
Jopie
I think jopie is the answer that is what first came to mind after doing it