This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
[{'content': 'Cell matrix adhesion are mediated by \nSelect and explain. \nA. Cadherins, B. Integrins, C. Selectins, D. Calmodulin', 'role': 'user'}, {'content': 'Answer: B \nExplanation: ref, Robbins 8/e p96;9/ep24 The cell adhesion molecules are classified into four main families: Immunoglbulin family CAMs Cadherins Selectins', 'role': 'assistant'}]