This was the first peacetime conscription bill enacted in the USA, requiring all men between 21 and 45 to register for the draft. It was drafted before the US joined WW2, and was part of a plan for the US to be prepared if war ever did break out, as it did.
The answer is D. <span>The European population nearly doubled, the Native American population dropped greatly, and millions of Africans were sent to the Americas as slaves
Native American population declined because many were sent to Europe as slaves. Meanwhile, African population nearly doubled because many Black African slaves were introduced as substitute to Native American slaves.</span>
Athens & Sparta are governments