The wave above is an electrical signal resulting from a sound wave. how does the information in the electrical signal make it to your car radio? it is carried on fm wave by modulating its
a) amplitude
b) frequency
c) wave speed
d) energy

The best and most correct answer among the choices provided by your question is the second option or letter B. It is carried on FM wave by modulating its frequency.

In telecommunications and signal processing, frequency modulation (FM) is the encoding of information in a carrier wave by varying the instantaneous frequency of the wave.

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