Read the passage from "to autumn."
then in a wailful choir the small gnats mourn
among the river sallows, borne aloft,
or sinking as the light wind lives or dies;

which best identifies and interprets the use of the underlined poetic device? (the light wind lives or dies is the poetic device)

a. simile; the wind is like an unhealthy river in the summer
b. metaphor; the wind is blowing hard enough to cry mournfully
c. imagery; the fluttering gnats appeal to the reader's sense of smell
d. personification; the stillness and gusts of the wind are described as its life and death