In my opinion, B. He knows George and is still willing to kill his son.
There's three different types of irony:
situational irony- an unexpected twist occurs at the end of the story
verbal irony- sarcasm
dramatic irony- the reader knows something that one of the characters do not
I would say that the name "Ship-Trap Island" is dramatic irony because the reader can infer that the main character will be trapped on an island, but the main character has no idea that he will soon be trapped on the island and hunted.
The idea of twilight being a calm time, as the title suggests, is present many times throughout the poem. The very first line of the poem uses the word "pleasant" to describe this time of day, beginning with the idea of a nice, calm evening. The speaker describes the animals being done with their work, and many animals "sitting" or "settling" for the evening. All of these words give the reader an image of a day winding down and calming down at twilight.
