A Force of 15 $\times$ 10⁶ N/m² $\times$ 10⁶ N/m² $\times$ 10⁶ N/m² $\times$

Multiple Choice

A force of 15.0 N is applied to a wire with a diameter of 2.00 mm.If the wire changed length by 1.20 mm,then the stress in the wire is

A) 4.77 $\times$ 10⁶ N/m².
B) 5.38 $\times$ 10⁶ N/m².
C) 6.73 $\times$ 10⁶ N/m².
D) 7.27 $\times$ 10⁶ N/m².
E) 8.75 $\times$ 10⁶ N/m².