Ann needs a blood transfusion. Ann has blood type A-. Three of Ann's friends have offered to donate blood for her transfusion. Marie has B and Rh antigens on her RBCs, Katie has A and Rh antigens on her RBCs and Mark has A antigens on his RBCs. Based on this information answer the following (number your answers).
- List the blood type of each friend
- List the type of antibody of each person including Ann (assume everyone has been exposed to Rh factor)
- Explain who would be the best donor and why (be specific)