Answer:
The correct answer option is B. Point X.
Step-by-step explanation:
We are given a graph where two triangles, a fixed point X and an arc is shown and we are to determine the center of rotation in it.
Center of rotation is basically a fixed point on a plane or a graph about which and figure rotates. It acts like a pivot in a door.
So here. we can see that point X is the center of rotation about which the vertex of a triangle is rotated 90° counterclockwise, forming an arc.
