I just got this question on a test and the answer is either B or C
I want to say it's B, that's the only one I can think that's relevant to the research
Successful or necessary because the synonyms for justified are reasonable,give reasons for ,and give grounds for so now I know it is necessary
The first revision ("Charlie is taking a dance class because he has to rather than because he enjoys it") is the correct answer :)
Answer:
It sounds like he is in a sound mental state