ANS:E - All the above.

"All the above."

1. The object of classifying soils is to arrange them into groups according to their properties and behavior: Soil classification aims to organize soils into groups based on their properties and behavior, which helps in understanding their engineering characteristics and how they will interact with structures or construction activities.
2. A soil classification system is meant to provide an accepted and systematic method of describing the various types of soils, eliminating personal factors: Soil classification systems provide standardized methods for describing soils, ensuring that descriptions are consistent and not influenced by personal biases or interpretations.
3. The first category of soil classification is based on the grain size of the soil: Soil classification commonly begins with categorizing soils based on their grain size distribution, which is a fundamental property influencing various soil behaviors and engineering considerations.
4. The second category of soil classification is based on fine as well as coarse grains: Soil classification systems typically consider both fine-grained and coarse-grained soils, recognizing the diverse range of soil types and their engineering significance.