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
Protein synthesis in cell is done by: 
Select and explain. 
A. Nucleus, B. Rough endoplasmic reticulum, C. Both, D. None
C: Both
Answer: C: Both 
Explanation: Both nucleus and rough endoplasmic reticulum are involved in protein synthesis Ref: Guyton and Hall textbook of medical physiology 12th edition ,pag number:10,11,12