Answer: B - soothing feelings.
Step-by-step explanation: The poem is an excerpt from Dover Beach by William Arnold. The poem mentions the moon in the beginning when it's talking about a calm sea. The only other time the moon is mentioned is "the moon-bleached sand" which a sad, roaring sea beats against. This suggests that the moon symbolizes calm or soothing feelings and when the moon isn't there, the opposite feelings come.
This answer is right on Edmentum.