50 A charred V-pattern on a wall indicates that fire spread up and out from something at the base of the V, while aninverted V-pattern on a wall could indicate that a flammable liquid was used along the base of the wall to set thefire intentionally. A fire burning across a wide area at the floor level can funnel into a thermal column as it ,creating the inverted-V pattern.(A)filters (B)snuffs (C)exposes (D)rises