This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: NEET Jan 2020, Subject name: Surgery
A 30 years old man presents with cramping gluteal pain after walking 500 meters. Which is the vessel involved? 
Select and explain. 
A. Aerial disease with aoo-iliac involvement, B. Aerial disease with femoral aery involvement, C. Femoral venous insufficiency, D. Saphenous venous insufficiency
A: Aerial disease with aoo-iliac involvement
Answer: A: Aerial disease with aoo-iliac involvement 
Explanation: Aoo-iliac disease - Tissue distal to aery occlusion becomes ischemic - as this aery supplies muscles - causes Intermittent claudication like Buttock, thigh, calf claudication andLeriche syndrome - Erectile dysfunction - Impotence