Bianca is building a lightning rod to safely conduct lightning strikes away from a building. She should choose a material with high [___].

A lightning rod must provide an easy path for electric charge to travel safely away from the building. Therefore, Bianca should choose a material with high electrical conductivity. Luster describes how shiny a material is, and ductility describes how easily it can be drawn into a wire; neither is the key property for conducting lightning.

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