Which row correctly identifies the organ from which each substance is excreted?
- Acarbon dioxide: kidneys; excess water: liver; salts: lungs; urea: lungs
- Bcarbon dioxide: liver; excess water: liver; salts: liver; urea: skin
- Ccarbon dioxide: lungs; excess water: kidneys; salts: kidneys; urea: kidneys
- Dcarbon dioxide: lungs; excess water: kidneys; salts: liver; urea: skin