The property that is not responsible for copper being used as electrical conduction wires is (b) color.
Explanation: Copper’s color is irrelevant to its electrical conductivity; its key properties for use in wiring are its high electrical conductivity and ductility, meaning it can be drawn into thin wires.
Why other options are incorrect:
(a) ductility:
Ductility is the ability of a metal to be drawn into wires, making it a crucial property for electrical conductors.
(c) good conductor of electricity:
Copper is a very good conductor of electricity, which is the primary reason it’s used in wiring.
(d) it is solid:
While not directly related to its electrical conductivity, being solid at room temperature is a general property of metals that are good conductors.