In blood grouping tests, agglutination with Anti-A serum indicates the presence of A antigen, while agglutination with Anti-B serum indicates the presence of B antigen.
If both reactions are positive, the person’s blood group is AB.
Therefore, Statement I is correct as agglutination occurs with both sera.
Statement II is also correct because this pattern identifies blood group AB.
So, both statements are true and consistent.