An open tank contains water to a depth of 2 m and oil over it toa depth of 1m. If the specific gravity of oil is 0.8, then the pressure intensity at the interface of the two fluid layers will be

A

$$9750 N/m^2$$

B

$$8720 N/m^2$$

C

$$9347 N/m^2$$

D

$$7848 N/m^2$$