Which of the following is a sign that a service dog may be overwhelmed?

Signs that a service dog may be overwhelmed typically include behaviors that indicate stress or anxiety. Excessive panting, pacing, avoidance behavior, or agitation are all clear indicators that the dog is experiencing discomfort or overstimulation in its environment.

Excessive panting could suggest that the dog is trying to cool down from stress, while pacing shows a level of restlessness often associated with anxiety. Avoidance behavior indicates the dog may be looking for a way to escape a situation or stimulus that it finds overwhelming. Finally, agitation, which may include whining, growling, or more pronounced restlessness, further signals that the dog is not in a relaxed state.

In contrast, sitting calmly and observing reflects a state of relaxation and focus, which does not align with signs of being overwhelmed. Similarly, exercise and playfulness indicate a healthy, engaged state rather than one of stress or anxiety. Thus, the behaviors listed in the correct choice serve as clear indicators of a service dog that is struggling with overload or stress.