The diagram illustrates some parts of the human digestive system. Which row states the main function of each labelled part?
- AP: digestion, Q: absorption, R: ingestion, S: egestion
- BP: ingestion, Q: digestion, R: egestion, S: absorption
- CP: egestion, Q: digestion, R: absorption, S: egestion
- DP: ingestion, Q: digestion, R: absorption, S: egestion