Which of the following best explains how the Laws of Burgos affected the social hierarchy of the Spanish
colonies in the Americas?

The laws of Burgos established the relations between the Spanish settlers in the Americans, and the Native Americans.

Explanation:

It held that the Spanish monarch had a rightful right over the lands of the Americas that Spain conquered, because he was a representative of Christianity, and spreading Christianity over these "wild lands" made his rule legitimate and necessary.

The laws also held that Native Americans were subjects of rights, and thus, could not be enslaved, and had to be christinianized, but they also had duties: mainly, working for the benefit of the Spanish Crown.