Which of the following are not required of a service animal?

The correct choice highlights that breeding information is not a requirement for a service animal. Service animals are defined under the Americans with Disabilities Act (ADA) as dogs that are individually trained to perform tasks for individuals with disabilities. The crucial aspect of service animals is their training and the tasks they perform to support their handlers, not their ancestry or breeding lineage.

In contrast, professional certification, vests, and handler training can be associated with service animals. While it's common for service animals to wear identification vests and some handlers may prefer to have documentation of the service animal's training, there is no official certification regulated by the ADA. This means that breeding information, unlike training and identification, is irrelevant to the distinction of a service animal and does not impact their function or legal status.