Step 1: Analyse options.
- Each figure in the series adds one element to a pattern of connected squares.
- If the first figure has 1 square, the second 2, and so on, the next figure must have the subsequent number of elements arranged in the same directional growth (e.g., clockwise addition).
Step 2: Conclusion.
Figure C matches the required step in the growth pattern.
Final Answer: (c) C