A block of material of volume 2 X 1O^-5m³ and density 2.5 x 10^-3 kgm^-3 is suspended from a spring balance with half volume of the block immersed in water. What is the reading of the spring balance? (Density of water =1.0x10³ kg m^-3 g = 10 ms^-2).

• A.0.10N
• B.0.25N
• C.0.30N
• D.0.40N
• E.0.50N