D. The light in the attic usually works.
D. is correct because it uses the word "usually."
The word usually is and adverb of time.
A and B are incorrect because they use an adverb of manner, which are the words "loudly" and "quickly."
C. is incorrect because it uses an adverb of place, which is the words "indoors."
Therefore, D. is the only reasonable answer.
Hope this helped.
