Dependent, because it cannot be a sentence on its own.
Expository text will focus on educating its reader. Other descriptors of exposition are clear, concise, and organized writing.
Answer: B. Toughness is your answer
Explanation:
The point of view it will be written in (first, second, or third person), the story line (what the piece will be about), and weather it will be nonfiction or fiction (will you provide facts, dates, etc. or thoughts and opinions.)