Given its authoritative coverage of other science topics,
the textbook's chapter on genetics is surprisingly tentative, which leads one to doubt the author's scholarship in that particular area.
A)
the textbook's chapter on genetics is surprisingly tentative, which leads
B)
the chapter of the text book on genetics is surprisingly tentative, leading
C) the text book contains a
surprising and tentative chapter on
genetics, which leads
D)
the textbook's chapter on genetics is surprisingly tentative and leads
E) the text book is surprisingly tentative in its chapter on genetics, leading
The sentence tells us about a book that covers a number of science topics and of those the chapter on genetics is tentative, and this tentative genetics chapter leads one to doubt the author's competency in Genetics.
From the participial, subject should be "the text book" => A, B, D out.
C: break the adjectives in conjunction-> the text book contains a surprising chapter on Genetics AND the text book contains a tentative chapter on Genetics
1st Part, what is so surprising in finding a chapter on genetics in a book on multiple topics from science ? - Absurd
E: Correct one. Maintains the mood of the sentence. Surprisingly tentative... one to doubt
Additionally, the construction "Participial + Main + Participial" is more symmetric than "Participial + Main + Relative" Construction -> This one is not needed to answer the question.
Good Question. Source ?