The Change in Enthalpy $\Delta H$ ) of a System Is Equal to _____

The change in enthalpy ( $\Delta H$ ) of a system is equal to _____.

A) $\frac { \Delta \mathrm { E } } { \Delta ( \mathrm { PV } ) }$
B) $\triangle E + \Delta ( P V )$
C) $\frac { \Delta ( \mathrm { PV } ) } { \Delta \mathrm { E } }$
D) $\Delta \mathrm { E } - \Delta ( \mathrm { PV } )$
E) $\Delta ( \mathrm { PV } ) - \Delta \mathrm { E }$