Which of the Following Is True of How the NLRB

Which of the following is true of how the NLRB carries out the function of preventing unfair labor practices?

A) The deadline for filing a charge is twelve months after the alleged unfair practice.
B) The NLRB has no authority to issue cease-and-desist orders to halt unfair labor.
C) The board can order the employer to reinstate workers, but cannot order them to pay back pay.
D) The NLRB is not authorized to set aside the results of an election and must approach the courts for this purpose.
E) If an employer or union refuses to comply with an NLRB order, the board has the authority to petition the U.S. Court of Appeals.