India Was Adopted Soon After She Was Born

Multiple Choice

India was adopted soon after she was born.Since she has been taking a class on intelligence,she wonders aloud if her IQ is more similar to her adoptive parents' or her birth parents'.You can tell her that she is most likely to have an IQ that is similar to

A) her adoptive parents'.
B) her birth parents'.
C) the score she would get if she split the difference between her biological and adoptive parents' IQs.
D) We can't determine based on this information.