The correct option is D All of the above
Genetic counselling is associated with a prenatal and postnatal diagnosis. Genetic counsellor performs various methods such as amniocentesis, ultrasound and karyotypes to determine the congenital diseases, sex determination and chromosomal abnormalities ( for example, Down syndrome) of the foetus. He discusses family planning with couples and guides them regarding the same. He also discusses medical history and genetic history of patient and risk associated with it in pregnancy. So, the correct option is D.