The fourth one is the answer
Answer:
d) The casualties in Vietnam
Explanation:
Kinnell doesn't set out to write a politically charged poem, but the connections he makes lead him in that direction, nonetheless. While living in a Vietnamese hamlet, the narrator of the poem Vapor Trail Reflected in the Frog Pond hears "America Singing," a song composed of the crunching of weapons and the buzz of a bomber jet. Thus, it contrasts conflict with tranquility by depicting a bomber against a tranquil background of the loss.
Could you explain a little more clearer please?
A simile is a figure of speech involving the comparison of one thing with another thing of a different kind, used to make a description more emphatic or vivid. Now, you simply have to find the simile, and think about how you can interpret it. Since you did not attach the excerpt I can’t answer but at least this is how to do it.