A transcritical R-744 booster rack in a supermarket, compared to subcritical R-22 legacy, (conceptual) has which distinctive thermodynamic+design trait?

Choices

• (A) No condenser+expansion+gas cooler issue
• (B) Always 0C condensing in desert
• (C) A gas-cooler with high pressure+HP controls, bypass, and ejector/floating+heat reclaim paths are central to the cycle
• (D) Only residential split