This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General pharmacology, Subject name: Pharmacology
In the metabolism of xenobiotics, all of the following reactions occur in phase one EXCEPT? 
Select and explain. 
A. Oxidation, B. Reduction, C. Conjugation, D. Hydrolysis
C: Conjugation
Answer: C: Conjugation 
Explanation: Oxidation, reduction, hydrolysis, cyclization, and decyclization are phase 1 reactions conjugation, sulfation, acetylation, methylation- phase 2 Pg.no.24 KD TRIPATHI seventh edition