In volleyball before each serve, the server should A. Be behind the serving line
B. Call out the score
C. Both A and B

a

Explanation:

The server should be behind the serving line before serving, once the server serves, they can enter the court

delegated (sometimes called enumerated or expressed) powers are specifically granted to the federal government in article i, section 8 of the constitution. this includes the power to coin money, to regulate commerce, to declare war, to raise and maintain armed forces, and to establish a post office.