Answer:
On May 18, 1917, Congress passed the Selective Service Act, which authorized the Federal Government to temporarily expand the military through conscription. The act eventually required all men between the ages of 21 to 45 to register for military service
It conscripted, or drafted, soldiers. giving them the opportunity to work in various factories.
Explanation:
<span>Mahmud of Ghanzi was the most famous ruler of the Ghaznavid Empire. After the death of his father Sabuktigin, Mahmud separated from the Samanid Empire. By conquering what is now Pakistan, eastern Iran, and Afganistan, he turned the city of Ghazna into the capital of an empire. He was also the first ruler of the Empire to take the title Sultan.</span>
B: the protection and spread of slavery
I'm 90% sure it's 2000 because urban areas now a days are overcrowed and cities have increased in size from the 1900's and the rest are pretty much both more for the 1900'spam than now but what I think it's more towards 2000's
