Answer:
B. “the sound of steel on stones”
Step-by-step explanation:
Alliteration is what we call in literature when you use a certain sound and repeat it constantly at the start of words in a sentence, in thsi case the "S" sound is used constantly through the phrase, that is alliteration, other examples of alliteration could be:
"She shells seashells by the seashore"
"Peter Piper picked a peck of pickled peppers."