Which of the Following Is True with Regard to Laboratory

Which of the following is true with regard to laboratory techniques that separate X- from Y-bearing sperm? ​

A) This procedure is widely opposed by the public, even when used by couples at risk for passing on X-linked diseases.
B) This involves inserting the embryo of the desired sex into the woman's uterus.
C) This is of benefit to couples at risk of passing on a X-linked disease.
D) Success rates are nearly 100% for both male and female babies.