Statement: Internal energy of a system is an extensive property.
Explanation: The internal energy of a system depends upon the amount and physical state of the susbtance.
A. `S` is correct but `E` is wrong.
B. `S` is wrong but `E` are correct and `E`
C. Both `S` and `E` are correct but `E` is correct explanation of `S`.
D. Both `S` and `E` are correct but `E` is not correct explanation of `S`.
