This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Epidemiology, Subject name: Social & Preventive Medicine
[{'content': 'In selecting a screening test for a disease which of the following should not be considered \nSelect and explain. \nA. Cost of the test, B. Efficiency of the treatment, C. Knowledge of the physician about the disease, D. Sufferings from disease to the people', 'role': 'user'}, {'content': 'Answer: A \nExplanation: .screening differs from periodic health examinations in such wat that, 1.capable of wide application 2.relatively inexpensive requires little physician&;s time,they are required only to interpret the results. ref:park&;s textbook,ed 22,pg no 127', 'role': 'assistant'}]