An allusion is a reference to a famous person or thing used to bring something to mind.
For example,
When someone says they were "shot by Cupid's arrow", they mean they fell in love with someone, and Cupid is often used to reference falling in love.
Hope that wasn't too confusing, lol.
The dialogue revealed that "Huck believes that many people cannot be totally trusted" I hope my answer has come to your help. God bless and have a nice day ahead! Feel free to ask more questions.
The answer is c,i believe