Final answer:
The internal pudendal artery passes between the levator ani and ischiocavernosus muscles.
Step-by-step explanation:
The internal pudendal artery is a significant artery within the pelvis, which provides blood supply to the perineal region. Regarding the muscles it passes between, the correct answer is D) Levator ani and ischiocavernosus. The levator ani muscle is a key component of the pelvic floor, aiding in supporting pelvic organs and facilitating functions such as defecation and childbirth. The ischiocavernosus muscle lies directly next to it, contributing to the stability and function of the pelvic floor as well.