prep 2 #90?

90.   answer is A. but “emitting"与"burn"不平行呀？so I chose B. however, "having" doesn't sound right either. 多谢指点

Diesel
engines burn as much as 30 percent less fuel
than gasoline engines of comparable size, as well as emitting far less
carbon dioxide gas and far fewer of the other gases that have been implicated
in global warming.
                

(A) of
comparable size, as well as emitting far less
carbon dioxide gas and far fewer of the other gases that
have

(B) of
comparable size, as well as emit far less
carbon dioxide gas and far fewer of the other gases having

(C) of
comparable size, and also they emit far fewer carbon dioxide and other gases
that have

(D) that
have a comparable size, and also they emit far less carbon dioxide gas and
other gases that have

(E) that
have a comparable size, as well as emitting far fewer carbon dioxide and other
gases having