A．Man knows where the society is going.
B．People don’t welcome the rapid development of modem society.
C．The author is worried about the future of our modem society.
D．Man can do nothing about the problem of pollution.

A．By computerized traffic control and personal computers at home.
B．By computerized cash registers in the stores.
C．By computerized billing of credit card companies.
D．All of above.