What documentation is important for the O'Hare Badge application?

The correct choice highlights the essential documentation required for the O'Hare Badge application, which includes proof of identity, residency, and employment status. This information is critical as it serves to verify the applicant's identity and ensure they meet the necessary eligibility criteria for holding an airport badge.

Proof of identity confirms who the applicant is, while residency establishes that they have a legitimate address in the area, necessary for launching their application. Employment status is also vital; it shows that the applicant is affiliated with a company that has a legitimate reason for accessing secure areas in the airport. These checks are fundamental to maintaining security and trust within the airport environment.

Other options, while potentially useful in different contexts, do not hold the same weight in the initial application process for an airport badge. Therefore, focusing on the foundational requirements for identity verification is essential in understanding why this documentation is critical for the badge application.