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
Allergic content in LA: 
Select and explain. 
A. Methyl paraben., B. Sodium metabisulfite, C. Latex, D. All of the above
D: All of the above
Answer: D: All of the above 
Explanation: Allergic content in LA
 
Paraben  >>>       Sodium              >>>  Latex
                          Metabisulfate