Henry's law constant for the dissolution of CH₄ in benzene at 298 K is 2 x 10⁵ mm of Hg. Then, the solubility of CH₄ in benzene at 298 K under 760 mm of Hg is:
a) 38.4 x 10⁵ mmol/L
b) 15.2 x 10⁵ mmol/L
c) 7.6 x 10⁵ mmol/L
d) 3.8 x 10⁵ mmol/L