Which of the following can not be listed as consumer-product

A．criticize Paul Krugman for omitting some crucial points in his theory.
B．explain the recession in the consumer-product in Japan.
C．bring up a theory concerning the consumer behavior.
D．cast some light on how to pull Japan out of the recession in the consumer-product.

A．To stop giving them pocket money.
B．To persuade them in a gentle way.
C．To verbally humiliate them.
D．To threaten to expel them from the home.