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: Physiology
Growth hormone is also known as: 
Select and explain. 
A. Somatotropin, B. Somatostatin, C. Somatocrinin, D. Somatomedin
A: Somatotropin
Answer: A: Somatotropin 
Explanation: None