Which one is the sign of the Pope’s authority?

The church welcomed a new era in a ceremony full of ancient ritual and symbolism. After receiving his fisherman’s ring and white woolen stole, sign of his authority, Pope Benedict called for Christian renewal and unity. "In a world corrupted by power and burdened by poverty," he said, "the church as a whole must lead the way to Christ." He added greetings to his Jewish brothers and sisters. The Pope was later driven around the square on an open-top vehicle. He beamed and waved as he greeted his global flock.