What can serve as a primary source for a historian studying the end of apartheid in south africa?

Iam not here to cheat, i just need to check my answer. how were incan commoners grouped within their social class? a. by gender and age b. by family rank c. by wealth and status d. by religious worship my answer is c. i believe this because slaves are at the bottom of the rank, whilst the emperor is above all.

What are the media and the press sometimes referred to as? a.the fourth estateb.the sixth branchc.the mouthpiece of the governmentd. the first estate

Which of the following had the most significant impact in supporting portugal's e fforts to control the indian ocean spice trade