Go Orange Electronics Has Been Manufacturing Computers Since 1979

Go Orange Electronics has been manufacturing computers since 1979.It employs approximately 2700 employees.In 1987,the company's EEO Department advised management that 97% of the company's supervisors were White,although the company's workforce was 38% other than White.The company decided to implement a voluntary affirmative action plan which would reserve 25% of each supervisory training class for blacks and other minorities until such time as the percentage of minorities that were supervisors was representative of the available minorities in the local labor force.

A) this affirmative action plan is illegal because sets a quota for the number of minorities allowed in the class
B) this affirmative action plan is illegal because it discriminates against white men
C) this affirmative action plan is legal because it is temporary,doesn't unnecessarily infringe on the rights of white employees,and is designed to eliminate the racial imbalance in supervisory positions.
D) this affirmative action plan is legal because it only sets aside 25% of the class for minorities.