An operational amplifier, as used in todays consoles, may have a calculated gain of 5.This

An operational amplifier, as used in todays consoles, may have a calculated gain of 5.This means that as the input changes by _____.

A.1 volt, the output changes 5 volts

B.5 volts, the output changes 1 volt

C.5 volts, the output changes 10 volts

D.10 volts, the output changes 5 volts

请帮忙给出正确答案和分析，谢谢！

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