Answer:
The child with the blood type O will be adopted.
Step-by-step explanation:
A punnet square can be described as a diagram which is made to depict the outcomes of a cross.
To determine the possible blood groups of the children with parents having AB and O blood group, lets make a punnet square:
O O
A AO AO
B BO BO
The punnet square shows that the children produced will have 50 percent chance of having A blood group and a 50 percent chance of having a B blood group. Hence, we can tell that the child with O blood group is adopted.