What does the term Dolby B or Dolby C printed on tape recorders and ot – McqOptions

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1.	What does the term Dolby B or Dolby C printed on tape recorders and other sound systems refer to ?
A.	Frequency modulated system
B.	amplitude modulated system
C.	noise reduction circuit
D.	both DC and AC power can be used
Answer» D. both DC and AC power can be used

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