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
Insulin acts on 
Select and explain. 
A. Gs receptor, B. Nuclear receptor, C. Tyrosine kinase receptor, D. Ligand gated receptor
C: Tyrosine kinase receptor
Answer: C: Tyrosine kinase receptor 
Explanation: Insulin, Prolactin, Growth hormone acts on Tyrosine kinase receptors.