This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Breast, Subject name: Pathology
Most common carcinoma of breast is - 
Select and explain. 
A. Ductal carcinoma, B. Colloid carcinoma, C. Lobular carcinoma, D. Sarcoma phylloides
A: Ductal carcinoma
Answer: A: Ductal carcinoma 
Explanation: Ans. (a) Ductal carcinoma(Ref: Robbins 9th/pg 1057)*Almost all (>95%) of breast malignancies are adenocarcinomas that first arise in the duct/lobular system as carcinoma in situ*Distribution of invasive carcinoma, breast*Invasive Ductal Carcinoma-70 to 80%*Invasive lobular Carcinoma-10%*Mucinous- 2%