IEER (integrated) for unitary products differs from a single EER at one capacity point in that it (conceptual)?

Choices

• (A) Only applies to VRF 100% of time
• (B) Excludes all part-load in rating
• (C) Uses fan law only, no kWh
• (D) Weights part-load and staging cycles per AHRI test procedure to better reflect annual EER/efficiency in climate