The internal iliac arteries supply blood to the

A. diaphragm.

B. urinary bladder and rectum.

C. lower leg.

D. spleen.

E. reproductive organs.

The internal iliac arteries supply blood to the lower leg.

C or E, the Iliac arteries are split from the descending aortic artery. They split in the pelvic following the left and right lower limbs. They then turn into the femoral arteries the run on the inside of your thigh along the inner part of your femur. However, the location that they split may be just right to also supply oxygenated blood to the reproductive organs.