Which ONE of the following options CORRECTLY matches the processes associated with the growth condition given in the table?
| Process | Growth Condition |
|---|
| (P) Activated sludge process | (i) Anaerobic suspended growth |
| (Q) Anaerobic filter | (ii) Anaerobic attached growth |
| (R) Trickling filter | (iii) Aerobic suspended growth |
| (S) Anaerobic digestion | (iv) Aerobic attached growth |