What does the term 'Dolby B' or 'Dolby C' on tape recorders and other – McqOptions

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1.	What does the term 'Dolby B' or 'Dolby C' on tape recorders and other sound systems refer to?
A.	frequency driven system
B.	amplitude modeled system
C.	Noise reduction circuit
D.	Both DC and AC power can be used in experiments
Answer» D. Both DC and AC power can be used in experiments

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