A.
lateral surface of the 1st -3rd anterior sacral foramina
B.
lateral surface of the 2nd -4th anterior sacral foramina
C.
lateral surface of the 3rd -5th anterior sacral foramina
D.
lateral surface of the 1st -4th anterior sacral foramina
E.
lateral surface of the 2nd -5th anterior sacral foramina