Answer:
A. Sod is another name for grass, and it often looks silvery white in the winter.
Explanation:
Robert Louis Stevenson's poem "Winter-Time" paints a picture of an early snowy winter morning scene. The 5 stanza poem is narrated by an unnamed child who got up at dusk to observe the winter scene outside his home.
The given lines <em>"Black are my steps on silver sod; Thick blows my frosty breath abroad"</em> are from the last stanza. Here, the speaker uses the word "sod" to refer to the grasses that appear silver when covered with snow. So, when he stepped on the snow-clad grass, the imprint left is black as compared to the white outlay.
So, if Trent understands what sod means and understand how snow-clad leaves appear silvery, he will best understand the poem's meaning and what the speaker is talking about.
Thus, the correct answer is option A.