Sentence Correction

Unlike other scholars, the eminent mythologist has concluded that the stories of
Gilgamesh and Osiris record the transition from the age of matriarchal religious authority
to that of patriarchal political power.
(A) Unlike other scholars, the eminent mythologist has concluded
(B) Unlike other scholars, the eminent mythologist's conclusion
(C) Unlike other scholars, the eminent mythologist's conclusion is
(D) Unlike those of other scholars, the eminent mythologist's conclusions are
(E) The eminent mythologists, unlike those of other scholars, has concluded

OA is A
Can an expert shed more light on how A is the correct answer? Im still kinf of stucked.