This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Adrenal, Subject name: Pharmacology
The drug prednisolone is known to be a powerful anti- inflammatory agent. This is true due to the action of the drug on which of the following enzymes? 
Select and explain. 
A. Cyclo oxygenase, B. Lipoxygenase, C. Phospholipase A, D. Phosphodiesterase
C: Phospholipase A
Answer: C: Phospholipase A 
Explanation: -Steroids inhibit phospholipase A2 enzyme by causing induction of proteins called Annexins. -Phospholipase A2 is involved in formation of PG (Prostaglandin) and LT(leukotriene)