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Answer:
slightly frightening but useful.
The correct answer is C.
In the poem “Dover Beach” by Matthew Arnold the speaker talks about the sound the waves make when they break on the beach, draggin the pebbles with it as they draw back, and then bringing them back with their return.
This sound of the waves breaking over and over on the beach is what makes the speaker think of the eternal note of sadness.
Helloo,
I think the correct pronoun would be their. "You can ask anybody in my neighborhood to name their favorite Tejano group."
Hope this helps!