Specific gravity is
ARatio of mass of a substance to volume of substance
BRatio of density of substance to that of water
CRatio of mass of substance to that of water
DRatio of mass of substance to density of water
ARatio of mass of a substance to volume of substance
BRatio of density of substance to that of water
CRatio of mass of substance to that of water
DRatio of mass of substance to density of water