The difference between Fore Bearing and Back Bearing of a traverse line is
(A) exactly $90^{\circ}$
(B) less than $180^{\circ}$
(C) exactly $180^{\circ}$
(D) greater than $180^{\circ}$
The difference between Fore Bearing and Back Bearing of a traverse line is
(A) exactly $90^{\circ}$
(B) less than $180^{\circ}$
(C) exactly $180^{\circ}$
(D) greater than $180^{\circ}$