Constitution: Unmentioned powers belonging to the states?

Question

In the constitution, where does it say that unmentioned laws belong to the states? Please include direct references and correct answers. :) (my grade is on the line)

Answer 1

The 10th amendment reads: The powers not delegated to the Untied States by the Constitution, nor prohibited by it to the States, are reserved to the States respectively, or to the people. This is actually a restatement of one of the central assumptions of the entire Constitution. It was assumed that the Federal government had only those powers specifically granted by the states, which in turn drew their power from the consent of the citizens.

Answer 2

10th amendment. However, the Supreme Court has ruled that a law is not unconstitutional simply because it regulates staes, as well as private persons. However, as a general rule, where the Constitution has not granted Congress or the President rights to create a certain type of law, then the state has soveriegnty according to the 10th amendment

Answer 3

it is up to each individual state to decide such issues as abortion and the death penalty. states , however cannot legalize same sex marriage

Answer 4

10th amendment