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 of the following is not an essential component of primary health care? 
Select and explain. 
A. Provision of Essential Drugs, B. Cost effectiveness, C. Immunization against major infectious diseases, D. Health education
B: Cost effectiveness
Answer: B: Cost effectiveness 
Explanation: Among the above given options, cost effectiveness is not included as an essential component of primary health care. Ref: Park's Textbook of Preventive and Social Medicine, 19th Edition, Pages 710, 740-741.