Answer :

C because the x-axis and the y-axis are switched, basically.

Answer:

The third option is the correct answer.

Step-by-step explanation:

The triangles are reflected across the line y = x

When a triangle is reflected across the line y = x, this means that the x-coordinate and y-coordinate have changed their places. We must know that each point of a reflected image and the original image are at the same distance from the the line of reflection.