Answer:
Solution 3 is correct and solutions 1 and 2 are incorrect.
Explanation:
It says that the parallelogram is reflected across the x-axis. Think of reflection like a reflection in a mirror. The coordinates are mirrored across the x-axis (or the horizontal plane) and the x- coordinates stay the same but the y coordinates change. When you reflect across the y-axis, the x-coordinates change but the y-coordinates stay the same.
I hope this helped!