Engineer It Preventing charge from building up on objects is necessary on some job sites. The buildup of charge may be a safety hazard or could damage products. A company wants to design a device to minimize the buildup of charge on an object. Which of the following materials would be the best choice to make such a device out of? A. aluminum, which transfers charge quickly
B. rubber, which barely transfers charge
C. a new plastic, which transfers charge at a moderate rate

i think the answer is a, hope this : )

electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. shielding is typically applied to enclosures to isolate electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs. electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as rf shielding.

the shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. a conductive enclosure used to block electrostatic fields is also known as a faraday cage. the amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of apertures in a shield to an incident electromagnetic

from wikipedia