Find out the next figure in the above series from the options.
Given series:

Let's analyze the shifting/rotation pattern of the shaded regions inside the circle:
1. The circle is divided into $8$ identical sectors.
2. Notice the single unshaded sector positioned between two black sectors, or trace the clockwise movement of the main patterns.
3. From figure 1 to figure 2, the shaded configuration rotates by $1$ sector clockwise.
4. From figure 2 to figure 3, the shaded configuration rotates by $2$ sectors clockwise.
5. From figure 3 to figure 4, the shaded configuration rotates by $3$ sectors clockwise.

Following the pattern ($+1,+2,+3,\dots$), the transition from figure 4 to the next figure must involve a rotation of $4$ sectors clockwise.

Rotating the configuration of figure 4 by $4$ sectors clockwise brings it back to the exact look identical to Figure I.