Answer
B. CEABD
Explanation.
1. The first step you should have the angle to bisect. That is represented by figure C.
2. The second step is to draw an arc that cuts the two lines using O as your center. That is represented by figure E.
3. Now using point d as your center, make a small arc between the two lines making the angle. This is represented by figure A.
4. Using the other point E and with the same radius make a small arc such that it crosses with the previous arc in step 3. This is represented by figure B.
5. Lastly, join point O to the point where the two small arcs meet. Figure D.
By doing all these using the order CEABD, we bisect the angle at O successfully.
