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: Microbiology
Most common mode of transmission of Pasteurella Multocida is: 
Select and explain. 
A. Animal Bites or scratches, B. Aerosols or dust, C. Contaminated tissue, D. Human to human
A: Animal Bites or scratches
Answer: A: Animal Bites or scratches 
Explanation: Animal bites and scratch marks are most common mode of transmission of Pasteurella Multocida. Ref: Parija Subhash Chandra (2009), Chapter 38, "Haemophilus, Pasteurella, and Actinobacillus", In the book "Textbook of Microbiology and Immunology", Elsevier Publications, India, Page 341; Harrison's Principles of Internal Medicine, 17th Edition, Page 928; Textbook of Microbiology By Ananthnarayanan, 7th Edition, Page 331; Clinical Infectious Diseases By Schlossberg (2008), Page 1016