This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Gynaecology & Obstetrics
Cell - free fetal DNA screening is recommended in all except 
Select and explain. 
A. Multifetal pregnancy., B. Women 35 years or older at delivery., C. Prior pregnancy complicated by trisomy 21., D. Partner has balanced robertsonian translocation.
A: Multifetal pregnancy.
Answer: A: Multifetal pregnancy. 
Explanation: ACOG - does not recommend this test in women with low risk pregnancies or multi fetal gestation.