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: Microbiology
Acellular pertusis vaccine contains- 
Select and explain. 
A. Pertactin, flagillary hemagglutinin, cytotoxin, endotoxin, B. Pertactin, flagillary hemagglutinin, fimbriae, endotoxin, C. Pertactin, cytotoxin, fimbriae, pertusis toxin, D. Flagillary hemagglutinin, pertusis toxin, fimbriae
D: Flagillary hemagglutinin, pertusis toxin, fimbriae
Answer: D: Flagillary hemagglutinin, pertusis toxin, fimbriae 
Explanation: None