This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: miscellaneous, Subject name: Pathology
[{'content': 'Pleomorphic adenoma has? \nSelect and explain. \nA. Columnar cells enclosing lymphoid stroma, B. Exclusively myoepithelial cells, C. Epithelial cells in chondroid matrix, D. Nests of squamous cells & vacuolated cells containing mucin', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Mixed tumour of salivary gland (pleomorphic adenoma) is derived from a single clone (either myoepithelial or ductal reserve cell) and giving rise to two components, namely epithelial and myoepithelial (stromal elements) cells Pleomorphic adenoma: Encapsulated but pseudopodia (fingerlike projections) into the surrounding gland.', 'role': 'assistant'}]