Under RIPA Rule 23, what navigation lights are required on a power-driven sports boat of less than 12 meters in length when underway at night?

1. A flashing blue light on the bow only
2. A yellow flashing strobe light visible in all directions
3. Only a handheld flashlight shone at passing vessels
4. Sidelights (red port, green starboard) and an all-round white light (luz blanca todo horizonte), or masthead light and sternlight