Question 2214 Deck Safety

The correct answer is A) LCB and LCG. The "trimming arm" of a vessel is the horizontal distance between the Longitudinal Center of Buoyancy (LCB) and the Longitudinal Center of Gravity (LCG). This distance is important for determining the vessel's stability and trim characteristics. The other options are incorrect because the "trimming arm" does not refer to the distance between the Longitudinal Center of Flotation (LCF) and the LCG (B), the LCB and the LCF (C), or the Longitudinal Hydrodynamic Axis (LHA) and the LCG (D).