Match List I with List II
| | LIST I | | LIST II |
| A. | Repeator | I. | converts one form of energy into another |
| B. | Bandwidth | II. | information converted in electrical form and suitable for transmission |
| C. | Transducer | III. | A combination of a receiver and a transmitter |
| D. | Signal | IV. | portion of the spectrum occupied by the signal |
Choose the correct answer from the options given below: