Three signals related to amplitude modulation are shown in the figure. The correct assignment of the signals is

• A

  Signal A : Information message, Signal B : Amplitude modulation
• Correct answer
  B

  Signal A : Information message, Signal C : Amplitude modulation
• C

  Signal B : Carrier wave, Signal C : Information message
• D

  Signal B : Information message, Signal C : Amplitude modulation

Hence, the correct answer is option: 'B'.