The problem figures below change by a fixed rule. Which option figure continues the series?

Answer & explanation
Correct answer: option 3
The correct answer is Option (3) →
From each figure to the next, the hooked line turns 90° clockwise each time. So the next figure has the hooked line with the hook at its lower-right end.

Why the other options are incorrect
Option (1) — Incorrect. The hooked line has turned 90° anticlockwise instead of clockwise.
Option (2) — Incorrect. The hooked line is reversed: the hook bends to the other side, so it is a mirror image of the right one.
Option (4) — Incorrect. The hooked line has turned 180° instead of 90°.