the pressure at interface of liquid and a gas at rest

Question

At the interface of a liquid and a gas at rest the pressure is

(a) Higher on concave side compared to that on convex side

(b) Higher on convex side compared to that on concave side

(c) Equal on both sides

(d) Equal to surface tension divided by radius of curvature on both sides

Answer 1

D.when liquid and gas is at rest they are equal divided by radius of curvature