Question

an epidemic is the rapid spread of a disease across
a. the world
b. a region
c. a continent
d. oceans
please select the best answer from the choices provided.
a
b
c
d

Explanation:

An epidemic is defined as the rapid spread of a disease across a particular region. A pandemic is the spread across the world (eliminating A). Spread across a continent (C) is a subset of a region in a broader sense but the standard definition uses "a region". Spread across oceans (D) is too vague and not the standard term.

Answer:

B. a region