Randi is pregnant for the first time. Given the frequency with which twins and triplets have occurred in her family, she is understandably concerned that she will have a multiple-birth pregnancy. If you were her gynecologist, which of the following prenatal tests would you recommend to either confirm or rule out the number of babies she is carrying?

a. quadruple maternal blood test
b. amniocentesis
c. chorionic villus sampling
d. ultrasound


d

Psychology

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