This is more like the compass for finding your way out of a geometry book. A mathematical compass (like this one) is used to draw perfect circles. For Donne, it was the perfect metaphor for the long-distance relationship he imagined with his wife. Line 26: The compass is introduced emphasizing two crucial features.
They are* instead of they is. And also blue* instead of blew.
I am going to say B because it seems most appropriate.
Verb phrases Charlie will repeat
