Final answer:
A gown is not a helpful protector against Pasteurella multocida during veterinary dental procedures.
Step-by-step explanation:
The correct answer is d) Gown. When performing veterinary dental procedures, gloves, mask, and safety glasses are all protective measures that can help prevent exposure to Pasteurella multocida, a bacterium commonly found in the oral cavity of animals. However, a gown is not specifically designed to protect against this bacterium.