It would be B because "You seems happy about the cold weather" does not make any sense but "You seem happy about the cold weather' does make sense.
Hope this helps!
Answer: I’m thinking the prepositional word would be strange. Even though technically it is not a prepositional phrase. And the creature would be changed by it.
True. Beowulf has many elements of an epic poem, such as the protagonist being able to pull of many supernatural feats. For example, Beowulf manages to kill the demon in the end, tearing his arm off.