In the A.P view of coccyx the CR.. Angled 15oCaudal to the symphysis pubis

In the A.P view of coccyx the CR
a- Perpendicullar 2 inch above symphysis pubis
b- Angled 15ocephalic to the symphysis pubis
c- Angled 15oCaudal to the symphysis pubis
d- Perpendicular to coccyx
the answer is C