thE rAts FED unrEstriCtED DiEts Do not
A．hAvE onE prEvEnting-Aging protEin inCrEAsED.
B．hAvE thEir CEll DEAth inCrEAsED or DouBlED.
C．hAvE thEir DnA FrAgmEntAtion DouBlED.
D．hAvE thE lEvEls oF protEins inCrEAsE