One end of a uniform wire of length L and of weight W is attached rigidly to a point in the roof and a weight ${\mathrm{W}}_1$ 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 $\frac{3\mathrm{L}}{4}$ from its lower end is

• A

  $\frac{{\mathrm{W}}_1}{\mathrm{S}}$

• B

  $\frac{{\mathrm{W}}_1+\left({\displaystyle \frac{\mathrm{W}}{4}}\right)}{\mathrm{S}}$

• C

  $\frac{{\mathrm{W}}_1+\left({\displaystyle \frac{3\mathrm{W}}{4}}\right)}{\mathrm{S}}$

• D

  $\frac{{\mathrm{W}}_1+\mathrm{W}}{\mathrm{S}}$