To Date,the Most Informative Studies on How and to What

Multiple Choice

To date,the most informative studies on how and to what degree heredity and the environment influence human traits have relied on data from

A) adopted children and their biological parents.
B) monozygotic twins reared in the same environment.
C) dizygotic twins reared apart.
D) monozygotic twins separated at birth.
E) Egyptian mummies.