%_Rittinger's crushing law states that_%

• A. Work required to form a particle of any size is proportional to the square of the surface to volume ratio of the product
• B. Work required to form a particle of a particular size is proportional to the square root of the surface to volume ratio of the product
• C. Work required in crushing is proportional to the new surface created
• D. For a given machine and feed, crushing efficiency is dependent on the size of the feed & product