Although Alice Walker published a number of essays, poetry collections, and stories during the 1970s, her third novel, The Color Purple, which was published in 1982, brought her the widest acclaim in that it won both the National Book Award as well as the Pulitzer Prize.
1 Explanation
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Adam
The correct idiom is BOTH X AND Y, so we can eliminate (A) and (E), which use "both X as well as Y"
(B) commits a missing verb mistake. "Published" and "bringing" both function as adjectives modifying "her third novel." There is no verb here.
(D) The conjunction "and" should have parallel forms. (D) has "her third novel was published in 1982, and which brought her the widest acclaim." These are not parallel.
1 Explanation