This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pharmacology
Which of the following types of drug metabolizing enzymes are inducible? 
Select and explain. 
A. Microsomal enzymes, B. Nonmicrosomal enzymes, C. Both microsomal and non microsomal enzymes, D. Mitochondrial enzymes
A: Microsomal enzymes
Answer: A: Microsomal enzymes 
Explanation: All microsomal enzymes are considered inducible. Ref: KDT 6/e pg 23.