Calculate ?_rG for the Evaporation of Methanol at 25°C Under $\mathrm { PCH } _ { 3 } \mathrm { OH }$

Calculate ?_rG for the evaporation of methanol at 25°C under nonstandard conditions when $\mathrm { PCH } _ { 3 } \mathrm { OH }$ = 100.0 mbar
$\quad$$\quad$$\quad$ CH₃OH(l) ? CH₃OH(g)

A) -1.4 kJ mol^-1
B) +11 kJ mol^-1
C) -5.7 kJ mol^-1
D) +4.3 kJ mol^-1
E) -4.8 kJ mol^-1