[单选题]
A mass is hung from id05c64 hbqv5zethx6z fentical phww2f vi1 ,qu 04fwm+ yn,tf3wires made of aluminum, brass, copper, and steel. Which wire will stretch the le3ww,uff0h4i1fnytv pq + 2wm,ast?
A. aluminum
B. brass
C. copper
D. steel
E. all the same
