Which of these is the best source of information about a health product A celebrity endorsers
B the company website
C empirical evidence
D advertisement

C. Empirical evidence

Explanation:

Empirical evidence is information that is acquired through observations and expermentations, this information verifies the truth or falsity of a claim. This makes it more trustworthy and geuine compared to the "advertisment's", "celebrity endorsers" and "company websites" which only tell you what you want to hear so that they can make a quick buck.

what are the choices?

not quite sure but i think its