For the straight lines 4x + 3y – 7 = 0 and 24x + 7y – 31 = 0, the equation of
(A) bisector of the obtuse angle between them is x – 2y + 1 = 0
(B) bisector of the acute angle between them is 2x + y – 3 = 0
(C) bisector of the angle containing origin is x – 2y + 1 = 0
(D) bisector of the angle containing the point (1, – 2) is x – 2y + 1 = 0