All the following are use of amniocentesis, but one is a misuse. Which one is it ?
A. the centers for genetic consunseling offer amniocentesis on request to women for chromosome analysis.
B. This technique has been dveloped for detecting fetal abnormalities by analyzing chromosomal defects.
C. It is used to study the metabolic defects of fetus, e.g., PKU (phenyl ketonuria).
D. It is done to examine the sex of the fetus leading to increasing female feticides.