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: Surgery
Concentration of sodium in Ringer's lactate is: 
Select and explain. 
A. 154 mEq/L, B. 120 mEq/L, C. 130 mEq/L, D. 144 mEq/L
C: 130 mEq/L
Answer: C: 130 mEq/L 
Explanation: None