$\begin {array} {1 1} (A)\;\text{For a spontaneous process in an isolated system,the change in entropy is positive.} \\ (B)\;\text{Endothermic processes are never spontaneous} \\ (C)\;\text{Exothermic processes are always spontaneous.}\\ (D)\;\text{Lowering of energy in the reaction
process is the only criterion for spontaneity.} \end {array}$
