A Thermodynamic System Is Taken in Equilibrium Steps from State

A thermodynamic system is taken in equilibrium steps from State I to State II. The quantities by which the process can be characterized are

1 internal energy,
2 entropy,
3 temperature,
4 work, and
5 heat.

Of these quantities, those that are independent of path are

A) 1, 2, and 3.
B) 2, 3, and 4.
C) 3, 4, and 5.
D) 1, 3, and 5.
E) 2, 3, and 5.