You are a head intern overseeing three junior interns. A sensor that is modeled by a \(100-\Omega\) resistor requires five volts to operate correctly. You ask the three interns to design a power circuit for the sensor. Their designs are shown in Figure P2-64. The sources all have a \(50-\Omega\) internal resistance which needs to be accounted for. Choose the best design considering parts, source and load power, load voltage, standard values, etc. Explain your choice.

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