X-BIS at airports distinguishes different materials according to their atomic weights which are displayed in different colours. In this regard, which one among the following is not properly matched ?

X-ray Baggage Inspection Systems (X-BIS) at airports use dual-energy X-ray technology to distinguish materials based on their effective atomic number (Z_eff). The standard color-coding system is as follows:

• Orange: Organic materials (Low atomic number, Z < 10). This includes plastic, wool, paper, drugs, and water.
• Green: Mixed or inorganic materials (Medium atomic number, 10 < Z < 17). This includes glass, salt, and aluminum.
• Blue: Metallic materials (High atomic number, Z > 17). This includes zinc, tin, copper, and iron.
• Opaque/Black: Very dense materials that X-rays cannot penetrate, such as lead, gold, and platinum.

Option A is not properly matched because plastic, wool, paper, drugs, and water are organic substances and should be displayed in Orange, not Green. Option B is also technically mismatched in some systems (glass/salt are usually green), but A contains a larger group of clearly organic items incorrectly assigned to the mixed/inorganic category.