From the excerpt of "Dover Beach" by Matthew Arnold, the line "...on the French coast, the light/Gleams and is gone..." obviously symbolizes the impermanence of life. The light on the French coast is like an opportunity presented to us, once. We must be ready once this opportunity comes.
Answer:
nucleus
Explanation:
The nucleus is a membrane-enclosed organelle found in most eukaryotic cells. The nucleus is the largest organelle in the cell and contains most of the cell's genetic information (mitochondria also contain DNA, called mitochondrial DNA, but it makes up just a small percentage of the cell’s overall DNA content)
If you don't have answer choices, I would say either peer editing or reading it aloud and listening for errors.
