The diagram illustrates several changes of state. Which words name the changes of state, P, Q, R and S?
- AP: freezing, Q: boiling, R: melting, S: evaporation
- BP: melting, Q: evaporation, R: freezing, S: condensation
- CP: melting, Q: sublimation, R: freezing, S: evaporation
- DP: sublimation, Q: evaporation, R: melting, S: condensation