Many genetic disorders can be detected before birth. procedures include which is noninvasive, or which allows the chromosomes of the fetus to be examined. alternatively, maternal blood samples can be taken and tested for

Sequential or integrated screening

Cell-free fetal DNA testing

Proteins in your blood that can mean your baby has a higher risk of birth defects

Explanation:

Sequential or integrated screening

Sequential screening is a test that uses a mix of ultrasound and blood tests to look birth defects at 10 and 13 weeks of pregnancy.

Integrated screening is similar and is done at around 12 weeks and is slightly more accurate

Cell-free fetal DNA testing is testing the baby's DNA that ends up in the mothers blood for signs of birth defects

the answer to your question is b

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