2157. In illustration D039SA below, which Fire Control Plan symbol represents the best means to extinguish a LARGE Class Bravo fire on deck?

Symbol 14, representing a fixed foam monitor, is the correct choice for extinguishing a large Class Bravo fire on deck due to its high-capacity foam delivery and safe operating distance; other options like gas systems, sprinklers, or smaller foam units are less effective for large, open-deck fires involving flammable liquids.