​Match the Common Pregnancy Test/procedure with Its Description and How

​Match the common pregnancy test/procedure with its description and how it is done.Note: Answers may be used more than once.
-A screening test done at 15-20 weeks to detect higher risk of down syndrome,trisomy 18,and spina bifida

A) ​glucose challenge screening
B) ​glucose tolerance test
C) ​Group B streptococcus
D) ​maternal serum screen
E) ​nonstress test
F) ​ultrasound exam
G) ​urine test