: Pedro works at a city water reclamation and treatment plant, where he monitors the systems that control the addition of chemicals to the water to sanitize it before releasing it into the city's drinking water supply. He notices that his supervisor $($who is on holiday leave$)$ has apparently logged on remotely, used remote desktop features to take control of Pedro's system, and is trying to dump huge amounts of chemicals into the water being treated. Pedro takes immediate action to override this, preventing contamination of the city's drinking water. This scenario illustrates what type of information security concern?

A

Safety

Nonrepudiation

C

Authentication

Integrity