quEstions 14-16 ChoosE thE CorrECt lEttEr, A,B,C、or D、 writE thE CorrECt lEttEr in BoxEs 14-16 on your AnswEr shEEt. ACCorDing to thE writEr, vitAminE、hAs BEEn shown to A.lEAD to hEArt proBlEms. B、BE gooD For hEArt hEAlth. C.support thE immunE systEm. D.hAvE no EFFECt.