Answer:
The correct answer is option B. "sadness".
Explanation:
The poem "Dover Beach" by Matthew Arnold begins with a detailed description of the nightscape of the beach at Dover, talking about the tide, the moon and the cliffs of England. The mood of the poem is described as sadness, because it describes the sea waves as a phenomenon that never stops giving eternal sadness. The sadness mood is noted in the last lines of the poem "Begin, and cease, and then again begin; with tremulous cadence slow, and bring; the eternal note of sadness in".
