In "an irish airman foresees his death," the speaker is motivated to join the war effort by

a. a fervent belief that winning the war will benefit his countrymen.
b. a personal desire for adventure.
c. old-fashioned or traditional ideas about duty and sacrifice.
d. a vicious hatred for the enemy .

I choose letter C. old-fashioned or traditional ideas about duty and sacrifice. Yeat’s believes that this impulse that that leads people to sign and serve when war is upon them.  This takes on a deeper meaning when one is now sent to the front lines.  That’s sense of honor and sacrifice that one makes even if he knows that he puts his life at risks by doing so.

a simile is first defined as a type of speech that uses one thing or phrase with comparisons to things of an unrelated kind, often in order to make a more vivacious description. so of the phrases above, only the last one (i swear she cast a shadow white as stone) would be considered a simile, as a shadow white as stone takes two unrelated things and uses them in an interesting way.

explanation:

mark brainliest and have a great day!