Carissa has a family history of Down syndrome and is in her 5th week of pregnancy. She decides that she would like to find out as early as possible whether her unborn child has Down syndrome or any...

Carissa has a family history of Down syndrome and is in her 5th week of pregnancy. She decides that she would like to find out as early as possible whether her unborn child has Down syndrome or any other genetic abnormality. What test is she most likely to get?

a. fetal monitoring

b. ultrasound