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
Which of the following is involved in tumor metastasis cascade - 
Select and explain. 
A. Fibronectin, B. E-Cadherin, C. Type IV collagenase, D. Tyrosine kinase
B: E-Cadherin
Answer: B: E-Cadherin 
Explanation: None