GMAT Sentence Correction (SC) | Re: A seminal work for contemporary feminists, Simone de Beauvoir’s

A seminal work for contemporary feminists, Simone de Beauvoir’sThe Second Sex adopts a tone that is often scientific, sometimes contentious, and always authoritative .

A) adopts a tone that is often scientific, sometimes contentious, and always authoritative
B) adopts a frequently scientific and sometimes contentious tone that is always authoritative
C) adopts a tone often scientific, sometimes contentious, that is always authoritative
D) uses the adoption of an often scientific tone, sometimes