Pieces of aluminum, copper, gold, and silver wire each have the same length and the same cross-sectional area. Which wire has the lowest resistance at $20^{\circ} C$ ?
A) gold
B) aluminum
C) copper
D) silver
![Pieces of aluminum copper gold and silver wire each have the same length and the same crosssectional area Which wire has the lowest resistance at 20circ C A gol class=](https://us-static.z-dn.net/files/df6/b38f8f59681e76aae3e4ed066d699fb7.png)