The answer is C.
A is not, because the cowboy's appearance is not relevant to his personality as a round character. Same general idea for B and D.
It shows that people have always fought to be free from control of oppressive groups
Explanation:
Used to listen/ listened
Played
Worked/used to work
Used to write/wrote
Used to light/lit
Used to think/ thought
Went
Invented
Used to play/ played
