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: Medicine
[{'content': 'Which of the following is involved in tumor metastasis cascade - \nSelect and explain. \nA. Fibronectin, B. E-Cadherin, C. Type IV collagenase, D. Tyrosine kinase', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]