Since his release from prison, Mr. Mitnick appeared on television as an expert offering advice about______.

A．makes sure there are no illiterates
B．comes into being relatively recently
C．is enjoyed only by the noble people
D．is free to everyone who is a citizen

A．shareholders often cast negative influence on the well-being of workers.
B．owners of traditional firm enjoyed a good relationship with their employees.
C．limited liability companies were too large to run smoothly.
D．trade unions had a positive role on workers and the management.