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
Which of the following drugs should be given in sustained release oral dosage form ? 
Select and explain. 
A. An anti–arrhythmic drug with a plasma half life of 10 seconds used for acute treatment of PSVT, B. An anti–inflammatory drug with a plasma half life of 24 hr, C. A hypnotic drug with a plasma half life of 2 hours, D. An antihypertensive with a plasma half life of 3 hours
D: An antihypertensive with a plasma half life of 3 hours
Answer: D: An antihypertensive with a plasma half life of 3 hours 
Explanation: None