The auto company attributed its recent increase in profits to both its introduction of new models in North America that are less expensive in their manufacture and to success in making its factories more efficient.
(A) to both its introduction of new models in North America that are less expensive in their manufacture and to success in
(B) to both its introduction of new models in North America that are less expensive in manufacturing and success in its
(C) to both its introducing new models in North America that are less expensive in manufacturing and to success in
(D) both to its introduction of new models in North America that are less expensive to manufacture and to success in
(E) both to its introducing new models in North America that are less expensive in their manufacturing and to success in its
(A) to both its introduction of new models in North America that are less expensive in their manufacture and to success in
(B) to both its introduction of new models in North America that are less expensive in manufacturing and success in its
(C) to both its introducing new models in North America that are less expensive in manufacturing and to success in
(D) both to its introduction of new models in North America that are less expensive to manufacture and to success in
(E) both to its introducing new models in North America that are less expensive in their manufacturing and to success in its
