Standard enthalpy and standard entropy changes for the oxidation of ammonia at `298 K` are `-382.64 kJ mol^(-1)` and `-145.6 jK^(-1)mol^(-1)` respectively. Standard Gibbs energy change for the same reaction at `298 K` is
A. `–339.3 "kJ mol"^(–1)`
B. `–439.3 "kJ mol"^(–1)`
C. `–523.2 "kJ mol"^(–1)`
D. `–221.1 "kJ mol"^(–1)`