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
Antibodies present in person with 0 blood group: 
Select and explain. 
A. Anti-A antibody only, B. Anti-B antibody only, C. Both Anti-A and Anti-B antibody, D. No antibody
C: Both Anti-A and Anti-B antibody
Answer: C: Both Anti-A and Anti-B antibody 
Explanation: Ans. (c) Both Anti-A and Anti-B antibody Ref. Ananthanarayan 9/e 191 Agglutinated by Agglutinates cells Group Antigen present serum of group Antibody present of group A A B, 0 Anti-B B, AB B B A. 0 Anti-A A, AB AB A and B A, B, 0 None None 0 None None Anti-A and Anti-B A, B, AB