Question

q: what is an example of an entity?
a. an idea for a school you may build someday.
b. an existing school.
c. all the schools in an area.
d. im not sure

Explanation:

An entity is a distinct, existing thing. Option a is an idea (not a physical/existing entity), option c is a collection (not a single entity), and option d is not an example. An existing school is a single, existing entity.

Answer:

b. An existing school.