The ethical principle of veracity requires that pharmacists:

Veracity is the principle of being truthful and honest in one's actions and words. Pharmacists must act with honesty and without deception, as their responsibility is to promote the health and well-being of their patients. This means that they should not withhold any important information or mislead patients about their health or medication. Option A is incorrect because while respecting the rights of others is an important ethical principle, it is not specifically related to veracity. Option B is incorrect because while doing good to patients is important, it is not directly related to being truthful and honest. Option C is incorrect because fairness refers to treating all individuals equally, rather than specifically being truthful and honest.