Which of the above properties of a system is/are intensive ?

Question

Consider the following properties:

I. Temperature                    

2. Viscosity

3. Specific entropy

4. Thermal conductivity

Which of the above properties of a system is/are intensive ?

(a) 1 only                     (b) 2 and 3 only

(c) 2, 3 and 4 only       (d) I, 2, 3 and 4