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
Longest acting erythro poietin analogue is 
Select and explain. 
A. Epoietin α, B. Epoietin β, C. Darbo poietin, D. Romiplostim
C: Darbo poietin
Answer: C: Darbo poietin 
Explanation: Darbo poietin is the longest acting erythropoietin analogue.
Epoietin α & Epoietin β are other erythropoietin analogues.
Romiplostim is a thromboplastin analogue.