Ihave looked upon those brilliant creatures, and now my heart is sore. all’s changed since i, hearing at twilight, the first time on this shore, the bell-beat of their wings above my head, trod with a lighter tread. based on the excerpt from “the wild swans at coole,” what can you infer about how william butler yeats views time?

William Butler Yeats views time with great sadness, as a thing that passes inevitably, that cannot be regained despite one's actions, and that also has the power to modify places or things. This is exemplified in the excerpt by the phrases "And now my heart is sore" and "All's changed since I, hearing at twilight,".

b. cronkite, a trusted television personality, declared that the war was unwinnable and told the american people that the government had better find a way out

even though it went against everything the news anchors typically stood for, cronkite voiced an opinion and took a stance, telling the us that there was no way they were going to win, the war was going to end in a stalemate. 

the answer to "what does the narrator realize by the end of the story" is b.