A health plan wants to improve the quality of care delivered to its members.

According to the NAHQ CPHQ exam blueprint, the National Committee for Quality Assurance (NCQA) is the primary organization responsible for quality measurement and benchmarking for health plans.

Option D is correct because NCQA develops and maintains performance measures (e.g., HEDIS) and provides national benchmarks used to evaluate health plan performance.

AHRQ focuses on research and tools, TJC accredits healthcare organizations, and AMA represents physicians.

The CPHQ framework clearly identifies NCQA as the benchmark authority for health plan quality measurement.