Then you didn't get it right, you got points but can't logically answer the question. Focus on understanding the process and the right answers will come.
... , that (P2) and (C) are logically equivalent. Both propositions state: "You ... ) and the conclusion (C) are logically equivalent; whereas (P1) remains argumentatively ...
"0-50% are not white", i.e. "a minority are not white" seems to me to be logically equipollent to "most people are white". I'm missing any paradox that may be here.