Answer:
I believe its B
Explanation:
When soldiers from New York saw the barrels, they jokingly said "U.S." stood for Uncle Sam.
When RIP Van Winkle wakes up from his 20 years sleep time he found himself a very different town, as the Revolutionary War has passed. 3 things that let the readers know that a significant amount of time has passed is that RIP has a beard that is nearly a foot long, his weapon has rusted and he does not recognize anyone in the town, actually he noticed that people wears clothes that are very strange for him.
Omen is a prediction
an antynoym for omen would be a;
Mystery
Secrecy
Hiding
Concealment
Comparing examines the similarities, while contrasting shows the differences.