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
Which of the following is an enzyme inhibitor 
Select and explain. 
A. Phenobarbitone, B. disulfiram, C. Phenytoin, D. CCl4
B: disulfiram
Answer: B: disulfiram 
Explanation: Disulfiram is inhibiting the enzyme aldehyde dehydrogenase- accumulation of acetaldehyde- various hangover effects- vomiting, nausea, headache, tremors, sweating. used in alcohol addiction- 1st dose of disulfiram is used in doctor's supervision REF KD Tripathi 8th ed