Answer:
D. Hilary said that there must have been more than five thousand people at the stadium.
Explanation:
If the number is rounded or estimated, spell it out.
C is wrong because numbers higher than 99 do not need a hyphen.
Answer:
They would want to describe their looks or how they act and for settings want to describe what it looks like
Https://www.cliffsnotes.com/literature/c/the-call-of-the-wild/summary-and-analysis/chapter-6