A vertically immersed surface is shown in the below figure. The distance of its centre of pressure from the water surface is

A. $$\frac{{{\text{b}}{{\text{d}}^2}}}{{12}} + \overline {\text{x}} $$

B. $$\frac{{{{\text{d}}^2}}}{{12\overline {\text{x}} }} + \overline {\text{x}} $$

C. $$\frac{{{{\text{b}}^2}}}{{12}} + \overline {\text{x}} $$

D. $$\frac{{{{\text{d}}^2}}}{{12}} + \overline {\text{x}} $$

Answer: Option B