A Common Approach Used in a Genomic Study of Behavior

A common approach used in a genomic study of behavior might

A) Examine gene-environment interactions for individuals that are reared in the same environment
B) Measure the heritabilities of a behavior for individuals raised in different environments
C) Record epigenetic profiles of siblings raised in the same environment
D) Compare gene expression profiles for individuals that experience different environments
E) Compare the DNA sequences of siblings raised in the different environments