One end of uniform wire of length L and of weight W is attached rigidly to a point in the roof and a weight N is suspended from its lower end if s is the area of cross-section of the wire the stress in the wire at a height `(L)/(4)` from its lower end is
A. `(W_(1))/(s)`
B. `([W_(1)+(W)/(4)])/(s)`
C. `([W_(1)+(3W)/(4)])/(s)`
D. `(W_(1)+W)/(4)`