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Which of the following statements is CORRECT? 

(A) A grid-connected induction generator always supplies lagging reactive power to the bus. (B) An overexcited synchronous motor draws current at a lagging power factor. (C) An under excited synchronous generator connected to an infinite bus works at a leading power factor. (D) The load angle of a synchronous machine is the angle between the excitation voltage and the load current.

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