*HELP 15 POINTS AND BRAINLIEST* Read the poem "A Farm-Picture” by Walt Whitman.

THROUGH the ample open door of the peaceful country barn,
A sun-lit pasture field, with cattle and horses feeding;
And haze, and vista, and the far horizon, fading away.

The last line is shorter than the first line in this poem. This best reflects the idea of

the open door, which is closest to the observer.
the animals, which are in the middle ground.
the sunny pasture, which is in the middle ground.
the fading horizon, which is farthest from the observer.