(February 2, 2017, 1:21 PM EST) -- COLUMBUS, Ohio — E.I. du Pont de Nemours and Co. on Feb. 1 answered a complaint filed in the perfluorooctanoic acid (known as C8) injury multidistrict litigation, arguing that the case should be dismissed with prejudice in its entirety on grounds that the claims are barred because the plaintiff assumed a risk and/or was contributorily negligent (In re E.I. du Pont de Nemours and Co. C8 Personal Injury Litigation, MDL No. 2433, No. 13-2433, S.D. Ohio)....