Which of the Following Is True Regarding Strikes Under the National

Which of the following is true regarding strikes under the National Labor Relations Act?

A) A union must contact the State Mediation Consortium to attempt to mediate its demands before beginning a strike to achieve higher wages or better working hours.
B) A union must contact the National Mediation Service to attempt to mediate its demands before beginning a strike to achieve higher wages or better working hours.
C) A union must contact the Federal Mediation and Conciliation Services to attempt to mediate its demands before beginning a strike to achieve higher wages or better working hours.
D) A union must contact the Judicial Arbitration and Mediation Services to attempt to mediate its demands before beginning a strike to achieve higher wages or better working hours.
E) A union has no obligation to inquire into mediation before beginning a strike for any reason.