B. Thou and know is a slant rhyme
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.
Answer: out of your mind, not in your senses
Hope This Helps
https://byjus.com/govt-exams/direct-indirect-speech-rules/
C. Milky Way should be capitalized because it's a proper title. Earth is tricky in the sense that sometimes it is capitalized and sometimes it is not. Here, it should be because its in relation to other planets.