What is significant about the image of grass covering people who sacrificed their lives in war?
a. it is a symbol of the horrors of war.
b. it is simple, unadorned, and unremarkable.
c. it shows that death exists outside of the natural world's life cycle.
d. it requires ongoing care and maintenance.

What is significant about the image of grass covering people who sacrified their lives in war is that war is portrayed as something simple, unadorned, and unremarkable (B).

This is a passage from the poem "Grass" by Carl Sandburg. In this poem, Sandburg emphasizes the need to remember the lives of the people who have died in war for freedom and, at the same time, chastises those who take their freedom for granted.  Sandburg uses personification to give the grass human features to portray that it acts as a cover of the deaths and the destruction by the war.

At the end of the poem, it reads "I am the grass/Let me work". This entails that all the horror of the war can be eradicated by the work of nature. In the end, grass will cover everything, the bodies and the destruction, but the devastation caused by the wars should not be forgotten.

what are the phrases to choose from?

a low four-wheeled open carriage of a kind formerly used in russia.