Current Research on Human Genetics Promises All Except Which of the Following

Current research on human genetics promises all except which of the following?

A) to not just treat disease, but stop it before it develops
B) to give people information about their future medical condition
C) to allow parents to assess the health profile of a future child
D) to accomplish a great deal, except the eradication of genetic diseases like Huntington's or cystic fibrosis