A．make people think for the first time about the problem of the availability of work
B．make concern for unemployment and the unemployed vary
C．make the subject of unemployment controversial again
D．show that there would in future be too little work to go round

A．unemployment must lead to inevitable depression of national economy
B．the unemployed are the victims of economical and social development
C．unemployment should be kept under the control of industrial forces
D．the unemployed are not entitled to share the benefits from technological progress