GMAT Sentence Correction (SC) | Re: Tim Ferris wrote The 4-Hour Workweek, an eye-opening book, that made i

Tim Ferris wrote The 4-Hour Workweek, an eye-opening book < modifier >, that made it to the New York Times Best Seller List.

After comma we use which , also which refers to 'The 4-Hour Workweek' .. hence D

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