Which function is performed by both state and federal governments?

Is it to enforce the law?

Explanation:

c. reserves power to the states and people

well, i can't read it so i'll ask you questions about it : )

if you were a reader and you read the introduction, would you want to read more?

does it start with a question? if so, is it something you would want to read about?

and ask any friends or family for their opinion : )