INTERNATIONAL ONLY While underway at night, a power-driven vessel of less than 7 meters in length, whose maximum speed which does not exceed 7 knots, may show which of the following?

Correct Answer: Option D — One all-round white light, only

Per COLREGS Rule 23(c)(i), a power-driven vessel of less than 7 meters in length whose maximum speed does not exceed 7 knots may, if it does not exhibit the lights prescribed in Rule 23(a), exhibit at least one all-round white light. This provides minimal visibility to prevent collision.