| 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 | 
Rearrange the following parts to form a meaningful and grammatically correct sentence: 
P. a healthy diet and regular exercise 
Q. are important habits 
R. that help maintain good physical and mental health 
S. especially in today's busy world