A．they enable the children to travel around without their parents
B．they allow one to find a good job and improve one's social status
C．they permit one to come into contact with different ways of behavior and thinking
D．they enable the children to better understand the ways of behavior of their parents

A．both parents have to work full time
B．the husband, wife, and children work too hard
C．the family members are subject to social pressures
D．the husband, wife, and children seldom get together