This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
Housemaid's knee is an inflammation of: 
Select and explain. 
A. Lateral patellae bursa, B. Semimembranosus bursa, C. Prepatellar bursa, D. Suprapatellar bursa
D: Suprapatellar bursa
Answer: D: Suprapatellar bursa 
Explanation: Mid-inguinal point