GMAT Sentence Correction (SC) | British historians have sometimes cited financial concerns as the prim

British historians have sometimes cited financial concerns as the primary cause of the American Revolution, but indoing so, the ideals of the 18th century French Enlightenment are not given their due.

(A) doing so, the ideals of the 18th century French Enlightenment are not given their due
(B) doing it, the ideals of the 18th century French Enlightenment are not given their due
(C) doing so, the ideals of the 18th century French Enlightenment have not been given their due
(D) doing