Answer:
see below
Explanation:
The images are mirrored right/left, so the reflection must be across the y-axis. That only leaves two answer choices.
If you translate ABC to the left, you will put it entirely in quadrant II, so reflection across the y-axis will put it in quadrant I. Obviously, that is not the correct sequence of transformations.
If you translate ABC 3 units to the right, it will put line AB on x=2. Then reflection across the y-axis will put that vertical segment on x = -2, exactly where corresponding segment DE is located.
The appropriate choice is the one shown below: