Final answer:
Going from the curbside arrival directly to CBSA without following airport checkpoints is considered a protocol breach. It indicates a failure to adhere to established customs and immigration processes and can have serious implications for airport security.
Step-by-step explanation:
If a passenger is going from the curbside arrival to the Canada Border Services Agency (CBSA) directly, this would likely be considered a protocol breach. Generally, passengers must go through specific checkpoints and processes when entering or exiting an airport, and any deviation from these established processes, especially ones related to customs and immigration, would be considered a breach of the protocols set by the airport authority and CBSA.
A protocol breach in this context implies a failure to adhere to formal rules or etiquette that are in place to ensure the security and operational effectiveness of airport customs. This kind of breach could have serious implications, leading to the involvement of airport security and potentially law enforcement to assess the situation and manage any potential risks.
Therefore, the answer to the question is D) Protocol breach.