Gone are the sharp edges and jutting planes of styles from former eras; instead, designers of everything from cars to computer monitors have adopted a cornerless style of smooth surfaces and curves that is more ergonomic, conforming to the shape of the body rather than flaunting shape for its own sake.

(A) more ergonomic, conforming to the shape of the body rather than flaunting shape
(B) more ergonomic, conformed to the body's shape and not to flaunting shape
(C) ergonomic, more conformed to the shape of the body and not to shape flaunted
(D) ergonomic, conforming more to the body's shape rather than shape flaunted
(E) ergonomic, conforming more to the shape of the body than flaunting shape

answer from prep:A
",conforming modifies "is more ergonomic." --->no problem
I remember that Ron says comma+ present participle follow two rules immediate consequence or simultaneous, but lower-priority, action

But" ,conforming" belongs to which one?
I have no idea.