According to the IMO Code, what are the minimum number of securing points that should be on each side of a "road vehicle", whose gross vehicle mass is between 20 tons and 30 tons, when carried on Ro-Ro vessels?

Correct Answer: Option C — Three

IMO Code for safe transport of vehicles on Ro-Ro ships mandates at least three securing points on each side for road vehicles with a gross mass between 20 and 30 tons to counteract dynamic rolling forces.