Answer:
Her doctor gave her RhoGAM.
Explanation:
RhoGAM, also known as RhO (D) immune globulin, is a drug given to a Rh- (negative) mother in order to protect the Rh+ fetus from the mother's antibodies. The drug prevents the mother of creating antibodies while pregnant that may harm the fetus.
In this case, Giovanna needs to take it since she is Rh incompatible with her first child, meaning the possibilities of incompatibility with any future children is highly likely, thus the doctor gives her RhoGAM to prevent immune responses.
