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: Anatomy
[{'content': 'The cells belonging to the following type of epithelium are provided with an extra reserve of the cell membrane - \nSelect and explain. \nA. Transitional, B. Stratified squamous, C. Stratified cuboidal, D. Stratified columnar', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Cells of transitional epithelium have an extra reserve of cell membrane in the form of plate-like areas of cytoplasm containing internalized membranes, which permits the stretching of the epithelium.', 'role': 'assistant'}]