The fractional compression of water at the depth of 2.5 km below the sea level is

The fractional compression of water at the
depth of 2.5 km below the sea level is ________%.
Given, the Bulk modulus of water = 2 × 10^9 Nm^–2, density of water = 10^3 kg m^–3, acceleration due to gravity = g = 10 ms^–2.
(1) 1.75                 (2) 1.0
(3) 1.5                   (4) 1.25 

                                                                    (JEE-2025)