When a sphere is taken to the bottom of a sea of depth $1 \ km$,it contracts in volume by $0.01 \%$. The bulk modulus of the material of the sphere is (Acceleration due to gravity $= 10 \ m \ s^{-2}$,density of sea water $= 10^3 \ kg \ m^{-3}$)
- A$10 \times 10^6 \ N \ m^{-2}$
- B$1.2 \times 10^{10} \ N \ m^{-2}$
- C$10 \times 10^{10} \ N \ m^{-2}$
- D$10 \times 10^{11} \ N \ m^{-2}$
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