Two steel wires are used to support equal loads. Wire A is twice as long as wire B but has a diameter half that of wire B. Which of the following is true?

A. The stress on wire A is 4 times the stress on wire B.
B. The stress on wire A is half the stress on wire B.
C. The stress on wire A is twice the stress on wire B.
D. The stress on wire A is the same as the stress on wire B..