Final answer:
A disease that spreads globally and affects a large number of people is called a pandemic. It could be a new occurrence or an existing disease that is increasing rapidly in incidence or geographic range, including re-emerging diseases. The correct option is d) Pandemic
Step-by-step explanation:
A disease that has appeared in the human population for the first time or that has existed for a while but is increasing rapidly or spreading around the world is called a pandemic.
The World Health Organization (WHO) defines an emerging disease as one that appears in a population for the first time, or that may have existed previously but is rapidly increasing in incidence or geographic range, which could include re-emerging diseases that were previously under control.
Moreover, a significant portion of these are zoonotic diseases, meaning they can be transmitted from animals to humans. The correct option is d) Pandemic