What is the meaning of these lines in the closing sestet of ""Lights""?

human inventiveness has brought brightness and optimism to the world. the power of love transforms the ordinary lights of city buildings into delicate works of art. people use the lights to brighten and mask the dreariness of their lives. the lighted windows on winter nights symbolize the energy and vibrancy of the city.

Explanation:

the answer should be b.

explanation:

it should be b because she researched before writing so it would be in past tense. "the author researches her subject before she had written the first draft.