In my opinion, the correct answer is B. one adjective clause. This clause is "which is perhaps the most famous border ever established by surveying methods". It modifies the subject ("The Mason-Dixon line"), providing an additional description for it.
Answer:
T.J.'s relationships show the difference between true friendship and false friendship.
It seems that you have missed the necessary options for us to answer this question, so I had to look for it. Anyway, in "The First Seven Years" by Bernard Malamud, the character's <span> life lesson that conveys the story’s main idea is FELD. Hope this answers your question.</span>
I cant see anything but i would be happy to help