The specific weight W of ocean water changes according to the equation $$W = W_o + C \surd h. W_o = $$Specific weight of ocean water at free surface and C is a constant. The pressure as a function of depth h is given by

A

$$W_o h$$

B

$$W_o h + \left(\frac{5}{2}\right) ch$$

C

$$W_o h + \left(\frac{2}{3}\right) ch^{\frac{3}{2}}$$

D

$$W_o h - \left(\frac{2}{3}\right) ch^{\frac{2}{3}}$$