Assertion (A): If the enthalpy of a closed system decreased by 25 kJ while the system receives 30 Kj of energy by heat transfer, the work done by the system is 55kJ.
Reason (R): The first law energy balance for a closed system is (notations have their usual meaning) $\Delta E = Q-W$.
a) Both A and R are individually true and R is the correct explanation of A
b) Both A and R are individually true but R is not the correct explanation of A
c) A is true but R is false
d) A is false but R is true