D because it is comparing two things for clarification.
Answer:
I think b the executive branch
Well saying dunno is an error in formal/academic writing. In academic writing you would have to write, i do not know, though.
Answer:
B. directly through a narrative description
Explanation:
The characters of Tablin and Keyn are revealed directly through a narrative description.
The author uses narration to bring both characters directly into the action in the prose by describing their actions, thoughts and speech.
I believe that the general notation for your subtopics in an outline is B. capital letters.
Roman letters are used for topics, capital letters for subtopics, and the rest for supporting points.