Answer: D. Packaging of OTC medicines are tamper-proof.
As a result of incidents involving the international contamination of Tylenol while up for sale in certain establishments, the Anti-tampering act of 1982 was passed. It was very easy to manipulate certain packages and with this, the FBI, together with other federal agencies was tasked with the function of residing over every offense made against the anti-tampering act. Some products regulated under this act include cosmetics, medical devices, and OTC drugs. With this, products, particularly, OTC drugs were packaged in a way to resist tampering by every means necessary.