Final answer:
To prevent the spread of disease, Vaccination, Quarantine, and Handwashing are key methods, making the correct answer D) All of the above. Each method plays a vital role in controlling contagious illnesses and protecting public health.
Step-by-step explanation:
The set methods used to prevent the spread of disease include Vaccination, Quarantine, and Handwashing, so the correct answer is D) All of the above. These methods work together to control the spread of contagious illnesses. Vaccination works by building immunity to a virus or virus family, preventing outbreaks before they start.
Quarantine involves separating those who have been exposed to a contagious disease from those who have not, to prevent the spread. Handwashing is the single most important defense against the spread of pathogens, as it removes microbes from the skin that can be transferred into the body via the nose, mouth, or eyes.