b
The formula for the bulk modulus is,
$\beta=\frac{-P}{\Delta V / V}$
The formula for the compressibility is,
$K=\frac{1}{\beta}=-\frac{\Delta V}{V P}$
Rewrite the above equation.
$-\Delta V=K P V$
Substitute the values in the above equation.
$-\Delta V=\left(6 \times 10^{-10}\right) \times\left(4 \times 10^{7}\right) \times 1$
$=24 \times 10^{-3} L$
$=24 cc$