Answer: I would go with B.
Explanation: The group of words for option B seem like they would be used more for contrasting than option D. It can't be option A or option C because those options use comparing signal words.
The Douglas Fir and Other Evergreen Trees Should Be right
Well, it depends on how you write. As you may know,a external conflict is a conflict occurring outside, like tornado or fires. A internal conflict is a conflict occurring inside like emotions. You could write about a man surviving on a island, balancing the external conflict (weather, hunger, etc) while still maintaining the emotional conflicts (misses family, difficult to kill animals).
