Select the correct text in the passage. Which two lines in this excerpt show the painful and filthy conditions faced by soldiers in the trenches during world war i? obscene as cancer, bitter as the cud of vile, incurable sores on innocent tongues, my friend, you would not tell with such high zest to children ardent for some desperate glory, the old lie; dulce et decorum est pro patria mori. (wilfred owen, "dulce et decorum est").