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
Bioavailability of Ramelteon is ? 
Select and explain. 
A. 2%, B. 7%, C. 10%, D. 30%
A: 2%
Answer: A: 2% 
Explanation: Ans. is 'a' i.e., 2% o The mean systemic availability following an oral dose is less than 2%