This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Social & Preventive Medicine
[{'content': 'Which of the following is not an example of direct transmission in communicable diseases ? \nSelect and explain. \nA. Transplacental (veical), B. Soil, C. Respiratory, D. STD', 'role': 'user'}, {'content': 'Answer: C \nExplanation: The modes of transmission of infectious diseases can be classified as: * Direct Transmission. Direct contact; Droplet infection; Contact with soil; Inoculation into skin or mucosa; Transplacental (veical)transmission. * Indirect Transmission. Vehicle-borne; Water; food/milk; Vector-borne. Mechanical; Biological. Airborne. ENT ref : park 21st ed', 'role': 'assistant'}]