The HAR1 Gene of the Human Genome _____________

The HAR1 gene of the human genome _____________.

A) has no known function
B) is expressed primarily in the developing fetal brain
C) is a gene of interest to those trying to unravel the genomic basis of human brain expansion
D) has experienced the pronounced effects of natural selection given its variation from the same region in the chimpanzee genome
E) All of these are correct.