What parental blood types can have a Type A positive child?

For a child to have Type A positive blood, they must inherit the A allele from one parent and the positive (RhD) allele from either the other parent or the same A-positive parent. Therefore, the possible parental blood types are:

1. A positive (A+) and A positive (A+)

2. A positive (A+) and O positive (O+)

3. A negative (A-) and A positive (A+)

4. A negative (A-) and O positive (O+)