They have equipped the office with the______ business machines.

A．Social change tends to be smooth in basic and emotional aspects of society.
B．Disagreement with and argument about conditions tends to slow down social change.
C．Social change is more likely to occur in material aspect of society.
D．Social change is more likely lo occur in what people learned when they were young.

A．Sure.
B．Here you are.
C．How can I
D．It’s over there.