Gary is using an indirect method to prove that segment DE is not parallel to segment BC in the triangle ABC shown.. . He starts with the assumption that segment DE is parallel to segment BC.. . Which inequality will he use to contradict the assumption?. . 4:10 ≠ 6:14. . 4:6 ≠ 6:14. . 4:10 ≠ 6:8. . 4:14 ≠ 6:10