Part or all of the following sentence is underlined; beneath the sentence are five ways of phrasing the underlined material. Select the option that produces the best sentence. If you think the original phrasing produces a better sentence than any of the alternatives, select choice A.

Before she became a major rock star capable of filling stadiums, she sings in little-known clubs and as a back-up singer for other acts.

(A) sings
(B) has sung
(C) is singing
(D) had sung
(E) has been singing

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