Rationing of some consumer goods
The answer is going to be b? hope that helped
People of various races riding on a bus with the ability to sit anywhere. 2012 The Associated Press The seating arrangement on this southern bus reflects changes started by the ruling in <em>Madison Brown v. Board of Education</em>. It was held in 1954 and struck down the doctrine of “separate but equal” established by the Supreme Court in Plessy v. Ferguson in 1896. Racial segregation was proved to be unequal and unconstitutional.
Https://15minutehistory.org/2012/12/03/episode-6-effects-of-the-atlantic-slave-trade-on-the-americas/
Separation of powers is a doctrine of constitutional law under which the three branches of government (executive, legislative, and judicial) are kept separate. This is also known as the system of checks and balances, because each branch is given certain powers so as to check and balance the other branches.