A．Cash would be no longer in use.
B．There would be more safety guards.
C．More prisons would be set up.
D．People would be better off.

A.Cash
B.
B．There
C.
C．More
D.
D．People
E.


【参考答案】

A
解析：因为有了银行的电子系统，现金就不再使用了，因而也就不用担心小偷，城市周围就会安全了很多。