Answer:
The answer is graph D
Explanation:
Starting at trigangle ABC apply a 90-degree rotation. This puts the triangle in quadrant 1 (Q1/the top right). So this leaves you with graphs A,C or D left. The eaiest way to see the orientation of the shape wuold be to turn the page 90-degrees clockwise.
Then staring from the triangle in Q1 reflect over the x-axis. This is the tranformation of the image folded over the horizontal axis. So it would place the triangle into quandant 4 (Q4/ bottom right) and would give the answer as graph D.