Assertion (A): Thermodynamic work is path-dependent except for an adiabatic process.
Reason (R): is always possible to take a system from a given initial state to any final state by performing adiabatic work only.
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