Consider the following Java variable names:

I. static

II$.2$ndInstance

III. addressLine$5$

IV$.$ basicDouble$\%$

V$.$ empOne$\_$

Which of the following options represent valid Java variable names? $($here$,$ "valid" means the compiler will allow the names$)$

$$

III, V only

II only

I and IV only

I, II$,$ and IV only