Match List I with List II:
List I | List II |
|---|
| A | P wave | I | Heart muscles are electrically silent. |
| B | QRS complex | II | Depolarisation of ventricles. |
| C | T wave | III | Depolarisation of atria. |
| D | T-P gap | IV | Repolarisation of ventricles. |
Choose the correct answer from the options given below: