Which is the best example of a claim
A. when i was young, it seemed like everyone was always trying to tell me what i couldn't do.
B. ''you won't understand those equations until you're older.''
C. ...I've mastered those equations, played forward for two years ,and am almost ready to play that piano piece.
D. ...sometimes you have to follow your dreams, and that you should never give up just because someone says that you can't accomplish your goal .