The constitutional provision that delegates power to the national government, to the state governments, and to the local governments is called — A. unitary system

B. confederate system

C. federalism

D. republicanism

Brian's school locker has a three-digit combination lock that can be set using the numbers 5 to 9 (including 5 and 9), without repeating a number. the probability that the locker code begins with a prime number is %. the probability that the last digit of the locker code is an odd number is %.