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: Surgery
A patient presents with breast ca. Inspection shows Peaud' orange appearance. What is the T stage of the tumor: 
Select and explain. 
A. T2, B. T3, C. T4a, D. T4b
D: T4b
Answer: D: T4b 
Explanation: None