With regard to a child's temperament, the child's long-term adjustment depends on the of their particular temperament and the nature and demands of their environment.

goodness-of-fit

Explanation:

Goodness-of-fit is defined as the affinity or connection between the social features of the environment and the temperament of a child. The long term adjustment of a child mainly depends on the goodness-of-fit of their specific temperament and what their environment demands. On the other hand, poorness-of-fit when the temperament of a child is not accommodated, neither is it respected.

the answer is a