Match List I with List II

List I	List II
A. Attenuation	I. Combination of a receiver and transmitter
B. Transducer	II. Process of retrieval of information from the carrier wave at receiver
C. Demodulation	III. Converts one form of energy into another
D. Repeater	IV. Loss of strength of a signal while propagating through a medium

Choose the correct answer from the options given below:

A

A-I, B-II, C-III, D-IV

B

A-II, B-III, C-IV, D-I

C

A-IV, B-III, C-I, D-II

D

A-IV, B-III, C-II, D-I