What does INA § 284 pertain to regarding border inspections?

The correct choice refers to the powers granted to immigration officers under the INA § 284, which allows them to perform border inspections. This section provides immigration officers with the authority to enforce immigration laws and conduct inspections on individuals attempting to enter the United States, helping to ensure that individuals are granted access in accordance with U.S. immigration regulations. Understanding this legal framework is essential for recognizing the role of immigration officers in maintaining border security and the enforcement of immigration policies.

In contrast, the other options revolve around scenarios or conditions that do not align with the focus of INA § 284. While it may seem intuitive to think about non-US citizens entering without inspection or the conditional landing of alien crew members, these topics are distinct from the authority and procedures specified within INA § 284, which specifically designates the powers to immigration officers during border inspections.