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Option 1: White cement is not used for wrapping fractured bones. White cement is commonly used in construction for its adhesive properties.
Option 2: White lead is not used for wrapping fractured bones. White lead is a toxic substance and is not suitable for medical use.
Option 3: Zinc oxide is not used for wrapping fractured bones. Zinc oxide is commonly used in skincare products and as a pigment in paints.
Option 4: Plaster of Paris is the correct answer. Plaster of Paris is a white powder that, when mixed with water, forms a thick paste. This paste hardens quickly and forms a rigid cast or splint around the fractured bone. It provides support and stability to the bone during the healing process. Plaster of Paris is commonly used in orthopedic medicine for immobilizing fractured bones.