Answer with explanation:
The pre image which is in blue color is parallelogram.
There are four blue parallelograms here,congruent to each other,each one of them when rotated by certain angle ,gives parallelogram in brown color.
When we rotate a polygon,after rotation neither the shape nor the size of polygon changes.The two shapes are congruent to each other.
→The Polygon being rotated to create the brown quilt block pattern is
Option C: Parallelogram