I think what u are looking for is probably ---------Computer Science -----------
Alliteration is when the same sound shows up at the beginning of words that are close together. The lines that contain this are:
2. Wanders and watches with eager ears,
3. Till in the silence around him he hears
4. The muster of men at the barrack door,
No se ese idioma lo siento
I am like 70% sure that the answer is B! Good luck.
