The Roman population grew quickly, thanks to surplus production of grains, olives and other crops. The extra population later helped Rome's military expansion by providing a large supply of troops. The surplus also helped Rome to establish trade ties with other Mediterranean powers, enhancing the city's economic might
Its A, the draft. Hope this helped :)
B discouraging anti American activism
I think it was if you don't work You don't eat... Hope it helps :)
December 29, 1845 was when they became a state