This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
Side effects of a drug arise due to the interactions of the drug to molecules other than the target. These effects of a drug can be minimized by its high ? 
Select and explain. 
A. Specificity, B. Affinity, C. Solubility, D. Hydrophobicity
A: Specificity
Answer: A: Specificity 
Explanation: Ans. is 'a' i.e., Specificity "The pharmocologist who produces a new drug and the doctor who gives it to a patient share the desire that it should possess a selective action, so that additional and unwanted adverse effects do not complicate the management of the patient" So side effects of drugs which arise due to interaction of the drug to molecules other than the target can be minimized by making the drug more specific. (also see above explanation).