In "Dulce et Decorum Est," what wartime memory haunts the speaker's dreams?
A. the bloody feet of comrades who had lost their boots
B. the exhausting and mindless march through sludge
C. the sound of artillery shells exploding nearby
D. the death of a comrade during a gas attack
Answer: D- the death of a comrade during a gas attack.
Explanation: according to lines 12 to 20 of the poem, the speaker talks about a gas explosion, looking back and seeing a comrade sunk. This he says always reflects in his dreams.
