The question
Answer A
Answer B
Pick the answer that is more correct, more helpful and clearer. If both are weak, pick the less bad one. Some questions are checks with a known answer; missing too many removes the wallet.
Test version. Rewards are test dollars with no real value.
You sign a short message to prove the wallet is yours. It does not send a transaction or cost anything. Your earnings are paid to this wallet.
Pick the answer that is more correct, more helpful and clearer. If both are weak, pick the less bad one. Some questions are checks with a known answer; missing too many removes the wallet.