The diagram illustrates an enlarged part of the lungs that contains specialised tissues. Which row correctly matches structures labelled 1 to 6?
- Acarbonic anhydrase: 1, $\text{HCO}_3^-$ ions: 3, lysosomes: 4
- Bcarbonic anhydrase: 2, $\text{HCO}_3^-$ ions: 4, lysosomes: 5
- Ccarbonic anhydrase: 3, $\text{HCO}_3^-$ ions: 5, lysosomes: 6
- Dcarbonic anhydrase: 4, $\text{HCO}_3^-$ ions: 6, lysosomes: 1