Answer:
D.
rotation
Explanation:
Ian traced his eraser on graph paper. Then, he slid the eraser up 2 units. He then rotated the eraser 45° clockwise. Finally, he traced his eraser again.
The answer is rotation as it is mentioned in the statement itself that he rotated the eraser by 45 degrees.
Translation simply means moving a figure without rotating or resizing.
Reflection is the mirror image of an object without moving places.