When a pressure of $100$ atmosphere is applied on a spherical ball, then its volume reduces to $0.01\%$. The bulk modulus of the material of the rubber in $dyne/c{m^2}$ is
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(c) $K = \frac{{100}}{{0.01/100}} = {10^6}atm = {10^{11}}\;N/{m^2} = {10^{12}}\;dyne/c{m^2}$
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