How are key ideas refined with clear and concise language in the
section “What are our demands?". What purpose does this section
serve?

The key ideas of demands are basically a universal pedigree to create a business. It generates exponential form of revenue, when there is a demand. The purpose of the section is simple under human conciseness there are requirement which humans perceive, I wish this could be easier to accomplish and products are created basis on this demands. example Amazon doorstep delivery, Bluetooth in car for calls to attend.

Explanation:

the tone of the passage is sympathetic to the forbidden love of romeo and juliet. the nurse plays a significant role in the play. she is responsible for making their meeting again possible. additionally, there is a sense of warning in the choice of words of the nurse. she seems to be authoritative when she calls romeo "scurvy knave", and at the same time the fact that she addresses to him as "sir" reflects respect. the nurse is "vexed", this word describes her confused state of mind. on the one hand, she finds romeo a fine and eloquent man, but on the other, it is thought that man's nature forces men to try to trick women.  

- "the answers are a and b.  

when cullen speaks of planting while others reap, and standing "abject and mute," he is speaking about the racial injustices present in american society. as these injustices have changed over time, the american identity  has also shifted. those changes are, in turn, reflected in american literature."