This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
The following statements are true about DPT vaccine except- 
Select and explain. 
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
C: Presence of acellular pertusis component increases its immunogenicity
Answer: C: Presence of acellular pertusis component increases its immunogenicity 
Explanation: None