The diagram displays a section of the nitrogen cycle. Which row gives the correct labels?
- Adenitrification 3; absorption 2; nitrification 4; nitrogen fixation 6
- Bdenitrification 3; absorption 5; nitrification 4; nitrogen fixation 1
- Cdenitrification 1; absorption 2; nitrification 3; nitrogen fixation 6
- Ddenitrification 1; absorption 5; nitrification 3; nitrogen fixation 4