Suppose Identical Twins Raised Apart Have a Correlation of

Multiple Choice

Suppose identical twins raised apart have a correlation of .40 on a measure of some aspect of personality,and identical twins raised together have a correlation of .60 on this same measure.From these data,what can we logically conclude about this trait?

A) Nonshared environment has an impact because,even raised together,the identical twins do not show a perfect 1.00 correlation.
B) Nonshared environment has no impact because the identical twins raised apart have a lower correlation than the identical twins raised together.
C) Shared environment has no impact because identical twins raised apart have a correlation lower than 1.00.
D) Shared environment has an impact because identical twins raised apart have a correlation of .40.