The all ABO group true except.. A group transfusion to group A and O group

The all ABO group true except:
a. AB group transfusion only to person AB
b. A group transfusion to group A and O group
c. O group can transfusion into person have A and B and O group
d. O group the contain both Antigen A and B***

O= contain antibody A and anti body B
NOT contain any antigen