This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General physiology, Subject name: Physiology
A protein to lipid ratio on a weight basis of 1:1 is present in the membrane of which organelle? 
Select and explain. 
A. Inner mitochondrial membrane, B. Myelin, C. Plasma membrane of human erythrocyte, D. Sarcoplasmic reticulum
C: Plasma membrane of human erythrocyte
Answer: C: Plasma membrane of human erythrocyte 
Explanation: None