Which figure represents the image of parallelogram LMNP after a reflection across the line y = x? figure A
figure B
figure C
figure D

correct choice is option 3 - figure C.

Step-by-step explanation:

Using the reflection rule, you can find coordinates of image points: L'(1,3), M'(3,4), N'(3,5) and P'(1,4). As you can see, these are coordinates of vertices of the figure C

Option 3

Answered by Gauthmath must click thanks and mark brainliest