Assertion: `C_(P)-C_(V)=R` for an ideal gas.
Reason: `((delE)/(delV))_(T)=0` for an ideal gas.
A. Statement-1 is true, Statement-2, is true, Statement -2 is a correct explanation for statement-1
B. Statement-1 is true, Statement-2, is true, Statement -2 is not a correct explanation for statement-1
C. Statement-1 is true, Statement-2 is false
D. Statement-1 is false, Statement-2 is true