What type of information can parents or guardians request about their child?

Parents or guardians have the right to request comprehensive information about their child's current physical and mental condition, diagnosis, and treatment needs. This broad scope of information is essential for them to understand their child's health status and the care that is being provided. It empowers parents or guardians to participate in treatment planning, make informed decisions regarding their child's care, and advocate effectively for their child’s needs.

Considering this context, the other options are more limited in scope and do not reflect the full range of information available to parents or guardians. Focusing only on diagnosis or treatment needs does not equip them with the necessary understanding of the child's overall health. Medication information alone is also insufficient as it does not encompass the entirety of the child's treatment and condition. Thus, the correct answer encompasses all relevant aspects of the child's health and care, which is vital for active involvement in their recovery and treatment processes.