the health of a child is best described as (d)((a)absence of disorders (b) compliment of interactions (c) uncling state (d) heredity conditions. Please help

I love the term "best". Best is in the eye of the beholder. If you won't argue over what a disorder is (is obesity a disorder? Is myopia a disorder? Is anger management a disorder? Is immaturity a disorder?), then a) to me seems the "best" choice.