Which of the following was the most significant effect of the Laws of Burgos on the indigenous populations of the Americas under Spanish rule?

B. The use of indigenous populations as part of a system of forced labor

Explanation:

B. a supporting detail

Explanation:

Supporting details refer to all the additional information (like anecdotes, stories, examples, incidents, facts, statements) that explains,¡ and reinforce a point so we could fully understand it and be persuaded of its accuracy.

Option A, (The Brown v. Board of Education) overturned Plessy v. Fergurson, is a supporting detail of the point "The Brown v. Board of Education Supreme Court ruling of 1954 paved the way for integration and civil rights" because the Plessy v. Fergurson, decided in 1896, allowed segregation to continue since it did not itself constitute unlawful discrimination.

However, the Brown v. Board of Education (1954) proved that segregation was a form of discrimination and therefore, it overturned Plessy v. Fergurson and this way the former paved the way for integration and civil rights.