Read the passage from "Mutability."
By contrasting "darkness" with "radiantly," Shelley
We are as clouds that veil the midnight moon;
How restlessly they speed, and gleam, and quiver,
Streaking the darkness radiantly!—yet soon
Night closes round, and they are lost for ever:
o emphasizes that although life is fleeting, it is exciting.
O compares the spark of creativity to the enduring night
sky.
O introduces the idea that people are destined to live life
in darkness.
O explains that people are permanent, bright fixtures
like the heavens.

According to passage, By contrasting "darkness" with "radiantly," Shelley include option A: emphasizes that although life is fleeting, it is exciting.

How does Shelley convey the idea that humans are constantly moving and changing?

In this passage, Shelley compares humans to clouds in order to emphasize how we are constantly moving and changing. He tells us that clouds "restlessly... speed, gleam, and quiver."

This describes the movement of the clouds. He also tells us that in the end, night closes around them, and they are lost forever. This also describes how souls, after all their movement and changes, inevitably stop existing, and are lost forever.

Therefore, correct option is A.

Learn more about darkness, refer to the link;

https://brainly.com/question/27023244