What would constitute the strongest evidence for environmental influence in intelligence,if they were very similar

A)  identical twins reared together 
B)  adopted children and their biological parents 
C)  adopted children and their adoptive parents 
D)  parents and their biological children

If adopted children and their adoptive parents have similar intelligence levels, it would suggest that environmental factors such as upbringing, education, and opportunities have more influence on intelligence than genetics. This is because the adopted children do not share genetic similarities with their adoptive parents, so any similarities in intelligence cannot be attributed to genetics.