Where a question arises as to whether any person is or is not the legal representatives of the deceased plaintiffs or defendants such question shall be determined by__________________?

A. The Court as provided in O. XXII, R. 5, of C.P.C
B. The relevant parties as provided in O. XXII, R. 5, of C.P.C
C. The heirs of the deceased as provided in O. XXII, R. 5, of C.P.C
D. None of the these