Final answer:
Transmission-based Precautions include Airborne, Droplet, and Contact categories, but not Distance.
Step-by-step explanation:
The correct answer is D. Distance. Transmission-based precautions include Airborne, Droplet, and Contact categories, which help prevent the spread of infectious diseases. However, Distance is not a category of Transmission-based Precautions. Airborne transmission occurs when pathogens in droplets are expelled through coughing or sneezing and are then inhaled by nearby people. Droplet transmission happens when pathogens spread through larger droplets that come into contact with the mucous membranes, typically through coughing or sneezing in close proximity. Contact transmission occurs through direct physical contact with an infected person or indirect contact with contaminated surfaces or objects.