Had to look for the missing details of this question and here is my answer.
This is actually an excerpt that was taken from "<span>The Grapes of Wrath", and the one that best describes the tone of this passage is that it is SYMPATHETIC. Hope this answers your question.</span>
Answer:
like if I was saying "oh this homework is a piece of cake" it would be a metaphor because I'm talking about something that is same as "this is easy"
so how to use a metaphor is by saying something that is using the same as the action or word your talking about and then turn it into a phrase like it's raining rocks like it's raining hard and there is a wall in front of my brain like your confused
The answer is D!
Hope it helps. :)