Read the given paragraph and select the
correct option that correctly fills in the blanks.
The given diagram shows electrolysis
of water. The electrodes are made of
(i). A is the positive electrode called
(ii). B is the negative electrode called
(iii). (iv) is produced at anode and
(v). is produced at cathode.
| I | II | III | IV | V | |
| A | Oxygen | Cathode | Anode | Hydrogen | Carbon |
| B | Carbon | Cathode | Anode | Hydrogen | Oxygen |
| C | Hydrogen | Anode | Cathode | Oxygen | Carbon |
| D | Carbon | Anode | Cathode | Oxygen | Hydrogen |
please explain this question