Correct Answer: 1,2,5 ; 3,7,8 ; 4,6,9
Explanation:
1, 2, 5 are figures that have patterns formed from four lines curved in a concave direction.
3, 7, 8 are figures that have patterns formed from four lines curved in a convex direction.
4, 6, 9 are figures that have patterns formed from these straight lines.
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