The science of improving hereditary qualities is known as

A. amniocentesis.

B. DNA research.

C. eugenics.

D. genetics.

The correct answer is letter C. Eugenics is the science of improving hereditary qualities. It came from the Greek word, eugenes, which means "well-born race, stock, kin." This is a practice of beliefs that aimed at improving the quality of genes of a particular human population. Much like the way that Spartans bred their offsprings where they made sure that only the best quality genes are present in their population.