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The most vexing problem faced by researchers exploring wind-powered generation of electricity is achieving a constant flow of power from an unpredictable natural source that meets demand, but so the flow does not overload electrical grids with sudden voltage increases.

(A) achieving a constant flow of power from an unpred-ictable natural source that meets demand, but so the flow does not overload
(B) achieving a constant flow of power from an unpredictable natural source, which meets demand but without overloading
(C) how to achieve a constant flow of power from an unpredictable natural source, a flow that meets demand but does not overload
(D) how to achieve a constant flow of power from an unpredictable natural source, but a flow that meets demand without overloading
(E) how a constant flow of power from an unpredictable natural source can be achieved, which meets demand but does not overload

User Flezcano
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Answer:

A

Step-by-step explanation:

achieving a constant flow of power from an unpredictable natural source that meets demand, but so the flow does not overload

User Maga
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