ANS:E - All the above.

1. Kaolinite is most stable clay:
   • This statement is generally true. Kaolinite is known to be one of the most stable clay minerals under normal environmental conditions.
2. Kaolinite shows very little sign of swelling on wetting:
   • This statement is generally true. Kaolinite is characterized by its low swelling capacity compared to other clay minerals like montmorillonite. It tends to retain its structure fairly well when wetted.
3. Kaolinite when wet, becomes moderately plastic because negative electromagnetic charges on platelets attract water:
   • This statement is true. Kaolinite, despite its limited swelling ability, can still become moderately plastic when wet due to its plate-like structure and the interaction of water molecules with the negative charges on its surfaces.
4. Kaolinite is also called China clay:
   • This statement is true. Kaolinite is commonly referred to as China clay, a term that originated from its extensive use in the production of fine china and porcelain.