Answer:
A. "horror bristling round the head”
Explanation:
The given question refers to the poem <em>A Child's Nightmare </em>written by Robert Graves.
The poem begins with some kind of nightmarish creature scaring the narrator when he was a child in his nursery, and then that same creature leaping on him <em>again from the clank of a night train.</em> This is in fact a night train that transported soldiers during the war. From this moment the war imagery begins. Lines <em>when I'm shot through heart and head</em> and <em>nor the stretcher-bearer's cry </em>are from this part of the poem, as well. The only line that is not an example of war imagery as it is from the first part of the poem is line A: <em>horror bristling round the head.</em>

The harmonic frequency refers to the resonant frequency that is an integral multiple of the fundamental frequency, harmonics are usually simple sinusoidal oscillation at a single frequency. where as Resonance frequency are frequencies that are not necessarily sinosudal or integral multiple of fundamental frequency and it may have complex oscillations made up of multiple harmonics ~
It's like if you play a piano with a single key, it will show harmonic frequency, but if you use multiple keys at a time it may show Resonance.
Answer:
What are literary devices? Literary devices are various elements and techniques used in writing that construct the whole of your literature to create an intended perception of the writing for the reader. You probably remember learning about literary devices like personification, foreshadowing, and metaphors in school.