A) Grayingnhair,nwaningnstrength,nandnwrinkles.
B) UnrepairednDNAnandnabnormalnproteins.
C) Impairedncellndivisionnandnthenabilityntonbreakndownnandnrecyclenwornncellnparts.
D) Anfattynlivernandncloggednbloodnvessels.
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