Interpersonal conflict in the workplace is______.

A．the prices of commodities produced by A and B are raised
B．we export large quantities of commodities produced by A and B
C．the producers in C and D are compensated for the disadvantages under which they operate
D．we allow duties to be paid to the producers in C and D rather than to the government

A．it is impossible to attain national self sufficiency
B．the varying productivity of the various industries leads to the inequalities in wages of workers in these industries
C．a policy that draws labor from the fields of greater natural productiveness to fields of lower natural productiveness tends to reduce purchasing power
D．the government ought to subsidize C and D