whiCh oF thE Following ACtivitiEs wAs thE rEsponsiBility oF thE FEDErAl govErnmEnt in thE ninEtEEnth CEntury
A．Control oF thE mAnuFACturE oF gunpowDEr.
B．DEtErmining thE ConDitions unDEr whiCh inDiviDuAls workED.
C．rEgulAtion oF thE supply oF monEy.
D．inspECtion oF nEw homEs Built on wEstErn lAnDs.