This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Communicable diseases, Subject name: Social & Preventive Medicine
Roll back malaria included all except - 
Select and explain. 
A. Insecticides nets, B. Strengthening health system, C. Develop new insecticide, D. Training health workers
D: Training health workers
Answer: D: Training health workers 
Explanation: Insecticides nets, Strengthening health system, Develop new insecticide,. REF. PARK'S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICINE 21ST EDITION. PAGE NO - 243