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
Which carcinoma breast is not invasive- 
Select and explain. 
A. Comedo carcinoma, B. Schirrhous carcinoma, C. Lobular carcinoma, D. Paget's disease
A: Comedo carcinoma
Answer: A: Comedo carcinoma 
Explanation: None