Which of the following actions is NOT permitted regarding service animals?

The correct answer emphasizes that handling patrol dogs is not permitted in the context of the actions related to service animals. Patrol dogs are typically trained for specific tasks related to law enforcement or security and are not recognized as service animals under the Americans with Disabilities Act (ADA). The handling of these dogs often requires specialized training and is generally limited to their handlers, such as police officers or security personnel.

In contrast, the other options are actions that are generally accepted in the context of service animals. Handling service animals is permitted, as individuals are allowed to interact with trained service animals that assist their handlers with disabilities. Caring for fish in aquariums falls outside the realm of service animals but is also generally permitted in a broader context of animal care. Feeding service animals is an essential aspect of their care, and service animals must receive proper nutrition and care, which allows for feeding them under appropriate circumstances.