596.Regarding traffic signs at roundabout sections, which of the following statements is correct? (A) The'roundabout' warning sign is placed inside the roundabout intersection, instructing vehicles to travel in acounterclockwise direction. (B) The 'roundabout' warning sign is placed in advance before approachingthe roundabout section, to warn of the upcoming roundabout intersection ahead. (C) The 'roundabout'warning sign and the 'roundabout travel direction' sign have the same function and can be usedinterchangeably.