It's answers A. and C. Hope this helps :)
Answer:
I think you are correct in the sense that he is the most know, he's a worldwide phenomenon, everyone knows who Mario is, but I think that title can fluctuate and has gone to others for a while, he is the most known though, that's for sure.
Explanation:
Just keep at it! The only way to learn a new language is to keep studying and working at it. I wish you the best of luck!
