Match List I with List II.
List I  | List II  | ||
| A | Taenia | I | Nephridia | 
| B | Paramoecium | II | Contractile vacuole | 
| C | Periplaneta | III | Flame cells | 
| D | Pheretima | IV | Urecose gland | 
Choose the correct answer from the options given below:
The output (Y) of the given logic implementation is similar to the output of an/a  …………. gate.