This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
What is Relminidine? 
Select and explain. 
A. Alpha 2 agonist, B. Alpha 1 agonist, C. Beta 1 agonist, D. Beta 2 agonist
A: Alpha 2 agonist
Answer: A: Alpha 2 agonist 
Explanation: Moxonidine and relminidine are alpha 2 central agonists.