The correct options are
A water proofing treatments
B surgical and cosmetic plants.
D insulating materials for electric motors
Silicones are used in many products.
They are used as sealant, greases,
electrical insulators and for water proofing of fabrics.
Being biocompatible they are also used in surgical and cosmetic plants.
Products with same physical properties of oils, rubbers and resins can beproduced using silicones.
Hence the correct options are A, B and D.