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
[{'content': 'The collagen triple helix structure is not found in: \nSelect and explain. \nA. Cytoplasm, B. Golgi apparatus, C. Lumen of endoplasmic reticulum, D. Intracellular vescicles', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A i.e. Cytoplasm', 'role': 'assistant'}]