A male client is having a lumbar puncture performed.. Prone, in slight-Trendelenburg’s position

A male client is having a lumbar puncture performed. The nurse would plan to place the client in which position?
a. Side-lying, with a pillow under the hip
b. Prone, with a pillow under the abdomen
c. Prone, in slight-Trendelenburg’s position
d. Side-lying, with the legs pulled up and head bent down onto chest.