Final answer:
The question is related to anatomy and the rotation of the human body, with the anterior superior iliac spine and posterior superior iliac spine needing to turn simultaneously to prevent torsion of the spine and great vessels.
Step-by-step explanation:
The phrase 'turned simultaneously to prevent torsion of the spine & great vessels' suggests that this is a question related to anatomy, particularly the anatomy involved in the rotation of the human body. The correct choice that fits this statement would be the 'anterior superior iliac spine (ASIS) and posterior superior iliac spine (PSIS). These structures are located on the pelvis and serve as important landmarks for the attachment of muscles and ligaments. During movements such as turning, these points of the pelvis need to move in coordination to prevent torsion or excessive twisting that could damage the spine and the large vessels that run close to it.