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: Dental
[{'content': 'Desmosomes are helpful in connecting – \nSelect and explain. \nA. Keratinocytes, B. Melanocytes, C. Dermis and epidermis, D. Langerhans cells', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Desmosomes are the major adhesion complex in epidermis, anchoring keratin intermediate filaments (IFs) to the cell membrane and bridging adjacent keratinocytes, and allowing cells to withstand trauma.', 'role': 'assistant'}]