After a Comprehensive Assessment, Findings Show Chronic Periodontitis with Moderate

After a comprehensive assessment, findings show chronic periodontitis with moderate bone loss, generalized pocket depths of 4 to 6 mm with bleeding, light subgingival biofilm and calculus on the maxillary arch and moderate to heavy subgingival biofilm and tenacious calculus on the mandibular arch. Based on these findings, what would be a realistic approach to NSPT for this client?

A) A 60-minute appointment consisting of oral self-care education and supragingival and subgingival debridement
B) Two 60-minute appointments consisting of oral self-care education, debridement, and scaling and root planing
C) Five 60- to 90-minute appointments consisting of oral self-care education, debridement, scaling and root planing, and re-evaluation
D) Six 60- to 90-minute appointments consisting of oral self-care education, debridement, scaling and root planing, and re-evaluation