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: Physiology
What will be the oxygen carrying capacity of an 18-year-old patient with a hemoglobin of 14 g/dL? 
Select and explain. 
A. 7, B. 14, C. 18, D. 28
C: 18
Answer: C: 18 
Explanation: Answer- C. 18Each gram of hemoglobin can bind with a maximum of 1.34 milliliters of oxygen (1.39 milliliters when the hemoglobin is chemically pure, but impurities such as methemoglobin reduce this).Here, Hb = 14.Hence, oxygen carrying capacity: l.34 x 14 = 18 mLO2/dL