Training priorities are being determined based on treatment record review results.

NAHQ guidance emphasizes prioritizing training based on weighted impact, not percentage compliance alone. While both progress notes and external communication show lower compliance, care plan documentation carries a higher weight (1.5) and has suboptimal performance at 80% compliance.

Weighted scoring reflects the relative importance of each category to quality and patient outcomes. Deficiencies in high-weight areas represent greater risk and therefore should be prioritized for improvement and training.

Assessment has high compliance, and external communication has lower weight. Progress notes have moderate weight. Therefore, the care plan represents the most significant opportunity for improvement, making Option C the correct answer.