The airplane is taxiing in a turn. What should the turn coordinator and the ball show?

1. 1A correct-direction turn, with the ball toward the turn
2. 2A correct-direction turn, with the ball opposite the turn
3. 3A correct-direction turn, with the ball staying centered
4. 4A turn in the opposite direction, with the ball centered

Source: Pilot's Handbook of Aeronautical Knowledge (FAA-H-8083-25C), Chapter 8: Flight Instruments — Gyroscopic Flight Instruments — Instrument Check, page 220