An Ideal Procedure for Fetal Testing in Humans Would Have

An ideal procedure for fetal testing in humans would have which of the following features?

A) the procedure that can be performed at the earliest time in the pregnancy
B) lowest risk procedure that would provide the most reliable information
C) the procedure that can test for the greatest number of traits at once
D) a procedure that provides a three-dimensional image of the fetus
E) a procedure that could test for the carrier status of the fetus