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
The collagen triple helix structure is not found in: 
Select and explain. 
A. Cytoplasm, B. Golgi apparatus, C. Lumen of endoplasmic reticulum, D. Intracellular vescicles
A: Cytoplasm
Answer: A: Cytoplasm 
Explanation: A i.e. Cytoplasm