Sentence Correction

Published during the late eighteenth century, Diderot's factual Encyclopedia and his friend Voltaire's fictional Candide were the cause of such a sensational scandal, and both men prudently chose to embark on extended vacations in nearby Austria.
(A) Diderot's factual Encyclopedia and his friend Voltaire's fictional Candide were the cause of such a sensational scandal, and
(B) Diderot and his friend Voltaire's caused such a sensational scandal with their factual Encyclopedia and fictional Candide, respectively, that
(C) Diderot's factual Encyclopedia and his friend Voltaire's fictional Candide were the cause of a scandal so sensational that
(D) the scandal caused by Diderot's factual Encyclopedia and his friend Voltaire's fictional Candide was so sensational
(E) a factual Encyclopedia by Diderot and the fictional Candide, by his friend Voltaire, caused a sensational scandal, which

C

B and D do not lead with the book which is required because the scandal/Voltaire cannot be published.

E is out because which does not lead in well with the non-underlined part

A is awkward IMO

It's between A and C.

C uses the correct idiom - so X that Y