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
Components of innate immunity are -a) T lymphocytes b) Complement proteinsc) B lymphocytesd) NK cellse) Integrins 
Select and explain. 
A. abc, B. ade, C. ace, D. bde
D: bde
Answer: D: bde 
Explanation: None