This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Concept of Control, Subject name: Social & Preventive Medicine
Which of the following is not a primary prevention strategy? 
Select and explain. 
A. Breast self exam, B. Control of tobacco, C. Radiation protection, D. Cancer education
A: Breast self exam
Answer: A: Breast self exam 
Explanation: ANSWER: (A) Breast self examREF: Park 20th edition page 38, 334Indirect repeat from December 2009"Breast self examination is for early detection of breast cancer and its treatment as early as possible and hence it is a secondary prevention"Cancer education is a primordial prevention which is a type of primary prevention as per parkBefore emergence of risk factorsBefore disease onsetAfter disease onsetOngoingdisabilityDisabilityPrimordialpreventionPrimarypreventionSecondarypreventionTertiarypreventionTertiarypreventionIndividual & mass educationHealth promotion & Specific protectionEarly diagnosis (screening) and treatmentDisabilitylimitationRehabilitation