Working electric motor takes a current of \(1.5 \mathrm{~A}\) when the pd across it is \(250 \mathrm{~V}\) of its efficiency is \(80 \%\), the power output is ____________
A. \(4.8 \mathrm{~W}\) B. \(133.0 \mathrm{~W}\) C. \(300.0 \mathrm{~W}\) D. 469.0W
