Answer: “who motivates (a) people”
rewrite this as “who motivated people”
Explanation:
It’s a simple grammatical error
Answer:
I think it is well constructed. But you could write it this way:
"Katniss Everdeen is a compassionate, selfless character who motivates people to rise up and dare to challenge the confines of their government"
Explanation:
It's pretty much the same, yes, you're thesis is well constructed and really didn't need much changed. I simply added a few extra words.