Multiple Choice Question (MCQ)

Question: What is the rule for converting R.B to W.C.B, if a line lies in between 270 Degree and 360 Degree?
A. W.C.B = R.B
B. W.C.B = 360? - R.B
C. W.C.B = 180? - R.B
D. W.C.B = 180? + R.B
Correct Answer: W.C.B = 360? - R.B