A．Larger family units and ineffective means of transportation.B．Outmoded methods of farming and ineffective means of transportation.C．A new dependence on people far away and the use of money.D．The introduction of a new alphabet and numerical system.
A．Larger family units and ineffective means of transportation.
B．Outmoded methods of farming and ineffective means of transportation.
C．A new dependence on people far away and the use of money.
D．The introduction of a new alphabet and numerical system.