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: Unknown
Study the given curve, comment on the finding 
Select and explain. 
A. A is related with myoglobin and B is related with hemoglobin, B. B is related with myoglobin and A is related with hemoglobin, C. Both are related with myoglobin, D. Both are related with hemoglobin
B: B is related with myoglobin and A is related with hemoglobin
Answer: B: B is related with myoglobin and A is related with hemoglobin 
Explanation: - Myoglobinis an iron-containing pigment found in skeletal muscle.