4. A sequence of transformations was applied to an equilateral triangle in a coordinate plane.
The transformations used were rotations, reflections, and translations. Which statement about
the resulting figure is true?
A. It must be an equilateral triangle with the same side lengths as the original.
B. It must be an equilateral triangle, but the side lengths may differ from the original
triangle.
C. It may be a scalene triangle, and all the side lengths may differ from the original triangle.
D. It may be an obtuse triangle with at least one side the same length as the original triangle.