Which of the following must be reported by a "mandated reporter"?

A mandated reporter is required by law to report any suspected abuse or neglect when they have reasonable cause to suspect that an individual is a victim of such mistreatment. In this context, the option regarding an individual showing signs of having been physically abused directly aligns with the responsibilities of a mandated reporter. Detecting physical signs of abuse—such as unexplained bruises or injuries—triggers the duty to report to the appropriate authorities, as this could indicate that the individual is in danger or at risk of further harm.

In contrast, the other options do not pertain to situations of abuse or neglect. Damage to clothing does not relate to an individual's safety or well-being, food preferences do not suggest neglect or abuse, and being unhappy about a temporary illness does not indicate any form of mistreatment. Therefore, only the signs of physical abuse necessitate a mandated report, reinforcing the importance of safeguarding individuals who may be vulnerable to harm.