What should a person's file include according to NGA standards?

The correct choice emphasizes the importance of having a guardianship plan and detailed progress notes in a person's file according to NGA standards. A guardianship plan is crucial as it outlines the responsibilities and decision-making processes for the guardian, ensuring that the individual's needs and preferences are respected. Additionally, detailed progress notes provide a comprehensive record of the individual's development and any changes in their condition over time, which is essential for monitoring their welfare and making informed decisions regarding their care.

This approach aligns with best practices in the fiduciary field, where thorough documentation is vital for accountability and transparency. It allows all parties involved to have a clear understanding of the situation, the measures taken to protect the individual’s interests, and any steps that have been implemented to support their wellbeing. These standards reflect a commitment to responsible fiduciary practices that prioritize the individual's rights and needs.