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: Social & Preventive Medicine
Which one of the following is the most sensitive and specific screening test to detect breast cancer- 
Select and explain. 
A. Regular X-ray, B. Self breast examination, C. Mammography, D. Regular biopsy
C: Mammography
Answer: C: Mammography 
Explanation: Mammography is most sensitive and specific in detecting small tumors that are sometimes missed on palpation.