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: Biochemistry
Translation occurs in : 
Select and explain. 
A. Ribosomes, B. Mitochondria, C. Nucleus, D. Cytoplasm
A: Ribosomes
Answer: A: Ribosomes 
Explanation: A i.e. Ribosome