Question

which of the following is a role of \public health\?
select one:
a. all of the other answers are correct.
b. prolonging life
c. promoting health
d. preventing disease

Explanation:

Public Health focuses on improving community health. Prolonging life (b), promoting health (c), and preventing disease (d) are all core roles of public health. So "All of the other answers are correct" (a) is valid as b, c, d are all public health roles.

Answer:

a. All of the other answers are correct.