This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Clinical Trials, Subject name: Pharmacology
Pharmacovigilance is used for- 
Select and explain. 
A. To monitor drug toxicity, B. To monitor unauthorized drug manufacture, C. Monitoring of students, D. Check costs
A: To monitor drug toxicity
Answer: A: To monitor drug toxicity 
Explanation: Ans. is 'a' i.e., To monitor drug toxicity Pharmacovigilanceo Pharmacovigilance is the science and activities relating to detection, assessment, understanding and prevention of adverse effects or any other drug related problem.