“rights of states” what specific right does this mean?

A states' rights are rights that the state has that the Federal Government should not infringe upon.

For example, every state has a right to make its own laws. The Federal Government cannot force that state to not make a law it doesn't like unless the law violates Federal law.

I am new to this, so if this answer is not helpful, please let me know! Thanks!

john maynard keynes developed new economic theories in response to the stock market crash of 1929. great depression of the 1930s. first and second world wars. economic boom of the 1950s.

answer; /// i do believe that the correct answer is (a); a farming tribe that settled primarily along the mississippi and arkansas rivers;