Meanwhile, impatient to mount and ride, booted and spurred, with a heavy stride on the opposite shore walked paul revere. now he patted his horse’s side, now gazed at the landscape far and near, then, impetuous, stamped the earth, and turned and tightened his saddle girth; but mostly he watched with eager search the belfry-tower of the old north church, as it rose above the graves on the hill, lonely and spectral and somber and still. and lo! as he looks, on the belfry’s height a glimmer, and then a gleam of light! he springs to the saddle, the bridle he turns, but lingers and gazes, till full on his sight a second lamp in the belfry burns!
how does the content of this stanza advance the story in this narrative poem?

it explains paul revere's reasons for wanting to warn of the british invasion.

it shows how difficult it was for paul revere to read the signal from the north church.

it shows paul revere reading the lantern signal and springing into action.

it explains why paul revere was nervous and frightened before his famous ride.