4. Pick up the correct statement from the following:
Options
A. The object of classifying soils is to arrange them into groups according to their properties and behaviour
B. A soil classification system is meant to provide an accepted and systematic method of describing the various types of soils eliminating personal factors
C. The first category of soil classification is based on grain size of the soil
D. The second category of soil classification is based on fine as well as coarse grains