There are two stations A and B. Which of the following statements is correct?
(A) The fore bearing of AB is AB
(B) The back bearing of AB is BA
(C) The fore and back bearings of AB differ by 180°
(D) All the above
(A) The fore bearing of AB is AB
(B) The back bearing of AB is BA
(C) The fore and back bearings of AB differ by 180°
(D) All the above