PLEASE HELP Which criteria must be true to conclude that ABCD is a parallelogram?

AC¯¯¯¯¯≅BD¯¯¯¯¯

AB¯¯¯¯¯≅DC¯¯¯¯¯ and AB¯¯¯¯¯∥DC¯¯¯¯¯

AB¯¯¯¯¯≅DC¯¯¯¯¯ and AD¯¯¯¯¯∥BC¯¯¯¯¯

AB¯¯¯¯¯≅DC¯¯¯¯¯

How does the graph of g(x)=⌊x⌋−3 differ from the graph of f(x)=⌊x⌋? the graph of g(x)=⌊x⌋−3 is the graph of f(x)=⌊x⌋ shifted right 3 units. the graph of g(x)=⌊x⌋−3 is the graph of f(x)=⌊x⌋ shifted up 3 units. the graph of g(x)=⌊x⌋−3 is the graph of f(x)=⌊x⌋ shifted down 3 units. the graph of g(x)=⌊x⌋−3 is the graph of f(x)=⌊x⌋ shifted left 3 units.