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: Surgery
Dimpling in carcinoma is due to: 
Select and explain. 
A. Edema, B. Contraction of Cooper's ligaments, C. Subdermal lymphangitis, D. Scarring
B: Contraction of Cooper's ligaments
Answer: B: Contraction of Cooper's ligaments 
Explanation: Dimpling: Small depression over skin of breast due to infiltration of ligament of Cooper by carcinoma Puckering: Small fold or wrinkle of skin over the breast due to infiltration of ligament of Cooper by carcinoma Cancer en-cuirasse: Infiltration of breast skin & chest wall with multiple nodules & ulceration by the carcinoma