Final answer:
A client, as defined by Regulation 1093, is a pet owner who seeks veterinary services for their pet's medical needs. Therefore, the correct option is b) A pet owner.
Step-by-step explanation:
A client, as defined by Regulation 1093, is a pet owner. This means that a client is an individual who owns a pet and seeks veterinary services for their pet's medical needs. They are responsible for the care and well-being of their animal companion.