The surface projection of the root of the appendix is
A.
The junction of the umbilicus and the right anterior superior iliac spine at the middle and outer 1/3
B.
The point of intersection of the umbilicus and the right anterior superior iliac spine at the middle and inner 1/3
C.
Midpoint of the line connecting the anterior superior iliac spine on both sides
D.
The middle and right 1/3 of the line connecting the two iliac nodules