Which of the following statements is true regarding the Diego blood group system?

A It is a high-frequency antigen in the European population
B It is a low-frequency antigen in the Asian population
C It is a high-frequency antigen in the African population
D It is a low-frequency antigen in the European population and a high-frequency antigen in the Asian population
The Diego blood group system is characterized by a low frequency of the Di^a antigen in Europeans and a high frequency in Asians.
ISBT website
Hematology Hematology: Blood Grouping and Crossmatching Hematology: Blood Grouping and Crossmatching Medium MEDICAL Confidence: high