A spherical ball contracts in volume by 0.02% when subjected to a pressure of 100 atmosphere. Assuming one atmosphere \[={{10}^{5}}N{{m}^{-2}}\], the bulk modulus of the material of the ball is

• A. \[0.02\times {{10}^{5}}N/{{m}^{2}}\]
• B. \[0.02\times {{10}^{7}}N/{{m}^{2}}\]
• C. \[50\times {{10}^{7}}N/{{m}^{2}}\]
• D. \[50\times {{10}^{9}}N/{{m}^{2}}\]