The author, taking the reader on a chronological journey through her native land, skillfully combining history and legend with fragments of fiction.
B. The reader is taken on a chronological journey through the author's native land by skillfully
E. The author takes the reader on a chronological journey through her native land, skillfully
The book says it's E. I put B, because it removes the ambiguity of the second sentence (who's 'her'? The author or the reader?). I realize that B is passive voice, but it seems like passive voice would be better than an ambiguous sentence, since you at least can convey the meaning of the sentence in passive voice, which doesn't happen in E.