The angle between the directions of the failure and the major principal plane, is equal to
(A) 90° + effective angle of shearing resistance
(B) 90° + half of the angle of shearing resistance
(C) 45° - half of the angle of shearing resistance
(D) 45° + half of the angle of shearing resistance
(A) 90° + effective angle of shearing resistance
(B) 90° + half of the angle of shearing resistance
(C) 45° - half of the angle of shearing resistance
(D) 45° + half of the angle of shearing resistance