The in the News Article Titled "The GM-UAW Deal" States

The In the News article titled "The GM-UAW Deal" states, "After months of negotiations and a 41-hour strike, GM and the UAW signed a new four-year contract in September 2007." What concessions, if any, did the UAW make?

A) The UAW made no concessions because GM had been losing market share.
B) GM got the right to hire new workers at half the base wage ($14/hour) of existing workers ($28/hour) .
C) The UAW agreed to relinquish responsibility for managing the employee/retiree health plan.
D) GM got the right to give new hires no retirement benefits, whereas employees had been getting guaranteed pensions.