This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology and breast, Subject name: Surgery
Most common variant of carcinoma breast among the following is 
Select and explain. 
A. Invasive lobular carcinoma, B. Invasive ductal carcinoma, C. Tubular carcimoma, D. Medullary carcinoma
B: Invasive ductal carcinoma
Answer: B: Invasive ductal carcinoma 
Explanation: Invasive Epithelial Cancers (Percentage of Total)Invasive lobular carcinoma (10%)Invasive ductal carcinomaInvasive ductal carcinoma, not otherwise specified (50%-70%)Tubular carcinoma (2%-3%)Mucinous or colloid carcinoma (2%-3%)Medullary carcinoma (5%)Invasive cribriform carcinoma (1%-3%)Invasive papillary carcinoma (1%-2%)Adenoid cystic carcinoma (1%)Metaplastic carcinoma (1%)Ref: Sabiston 20e, page: 837