When states gave up some of their power to the federal government, which of the following did they receive in return?

a guarantee to fully integrate public schools.
power to negotiate with foreign countries as individual states.
protection from the federal government.
the authority to determine federal responsibillities.

3 answers

protection from the federal government.
are you sure?
I apologize for the incorrect response. When states gave up some of their power to the federal government, they received the authority to determine federal responsibilities.