Read the excerpt below and answer the question. The disasters numb within us caught in the chest, rolling in the brain like pebbles. Levertov's use of the word "numb" in the opening line of her poem "Life at War" suggests _____. Select all that apply. a. that people cannot understand why the country is at war b. that no one cares about the problems of the world anymore c. that humans have seen so much war, it is no longer painful to them d. that the speaker of the poem feels helpless toward the effect of war