A).Humanism promoted the study of classical works that stimulated exploration of science.
Explanation:
Humanism is a polysemic concept that applies both to the study of human letters, classical studies and Greco-Roman philology and to a generic doctrine or vital attitude that conceives human values in an integrated way. On the other hand, humanism is also called "the belief system centered on the principle that the needs of human sensitivity and intelligence can be satisfied without having to accept the existence of God and the preaching of religions", which approaches secularism or secularist positions. It is applied as a denomination to different philosophical currents, although in a particular way, to the Renaissance humanism (the European cultural current developed in parallel to the Renaissance from its origins in the fifteenth century Italy), characterized at the same time by its classical philological vocation and for its anthropocentrism against medieval theocentrism.
The best option regarding Spain's treatment of the native americans would be that "<span>C. they were treated poorly and forced to work for Spanish businesses," since the Spanish exploited both the Natives and their land. </span>