Find the next figure in the series from the options given below.

By analyzing the pattern in the given series, we can track two simultaneous changes:
1. Shading: The triangle alternates between solid black and hollow (Solid $\to$ Hollow $\to$ Solid $\to$ Hollow $\to$ Solid $\to$ Hollow).
2. Position: The triangle rotates clockwise from one corner to the next in each successive box (Bottom-left $\to$ Top-left $\to$ Top-right $\to$ Bottom-right $\to$ Bottom-left $\to$ Top-left).

Following this sequence, the next figure must contain a hollow triangle in the top-left corner, which is exactly identical to Figure II. Hence, Option A is correct.