Mount Fuji is NOT a residual mountain; it is a Volcanic mountain (specifically a stratovolcano). Residual mountains, like the Aravallis, Vindhyas and Appalachians, are the remnants of old, high mountain ranges that have been worn down by millions of years of erosion. Mount Fuji, however, was built up by the accumulation of erupted lava and ash. ANSWER: (A) Mount Fuji