Rotation.
Crop rotation is when a farmer changes the crops grown in the same field each year to ensure he gets the best harvest possible by not exhausting the soil of specific nutrients by repeatedly growing the same thing.
an outlook or system of thought attaching prime importance to human rather than divine or supernatural matters. Humanist beliefs stress the potential value and goodness of human beings, emphasize common human needs, and seek solely rational ways of solving human problems.
a Renaissance cultural movement which turned away from medieval scholasticism and revived interest in ancient Greek and Roman thought.
noun: Humanism
(among some contemporary writers) a system of thought criticized as being centered on the notion of the rational, autonomous self and ignoring the unintegrated and conditioned nature of the individual.
A country needs rules about citizens cause in reality you cant have random people, bad record or not, coming in your country and just being a citizen instantly without any proof of trust, little do they know they could be a terrorist with the rights of a citizen just cause theirs no way to justify who's one or not.
The answer is D- Andrew Jackson
I think it is harmony but I am not positive