Can you me come up with a thesis statement for this question?
'did the factory act of 1833 completely end the problem of child labor? '

You turn the question into the statement ! Instead it would be THE FACTORY ACT OF 1833 COMPLETELY ENDED THE PROBLEM OF CHILD LABOR.
again thesis statements are questions turned in thesis STATEMENTS. 
hope this helps.

It is c because it shows how the author is stating their own oppinion about the protagonist