Because blood from different individuals may different in the type of antigen on the surface of the red cells and the type of antibody in the plasma, a dangerous reaction can occur between th

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Because blood from different individuals may different in the type of antigen on the surface of the red cells and the type of antibody in the plasma, a dangerous reaction can occur between the donor and recipient in a blood transfusion.

Because

different

can occur

and

Giải thích

Chọn đáp án Bdifferent => differ
Giải thích: may + V nguyên thể, "different" là tính từ nên ta chuyển nó về dạng danh từ