The correct option is C section 64
The Conciliators to a conciliation proceeding is appointed as per provisions of section 64 of the Act. In conciliation proceedings with one conciliator, the parties may agree on the name of a sole conciliator. In conciliation proceedings with two conciliators, each party may appoint one conciliator. In conciliation proceedings with three conciliators, each party may appoint one conciliator and the parties may agree on the name of the third conciliator who shall act as the presiding conciliator.