can somebody help me with this? thanks and brainliest giving!

Answer:
It D hope this is right
Step-by-step explanation:
I'm learning this in class right now and I'm pretty good at it so hope you get it right
Answer:
D. a reflection over the y-axis
Step-by-step explanation:
We can see that ΔQRS has been directly translated across the y-axis to form ΔQ'R'S'. (It mirrors across)