The following statements are true about DPT vaccine except-: (A) Aluminium salt has an adjuvant effect, (B) Whole killed bacteria of Bordetella pertusis has an adjuvant effect, (C) Presence of acellular pertusis component increases its immunogenicity, (D) Presence of H. influenzae type B component increases its immunogenecity increase its immunolgenecity
Answer is C. None