In a function, if you replace x with x - h, the graph shifts h units horizontally.
Here you replaced x with x - 1, so the graph shifts 1 unit horizontally. Since 1 is positive, it shifts 1 units to the right.
In a function, if you replace y with y - k, the graph shifts k units vertically.


In y, you replaced y with y - 4, so the vertical shift is 4. Since 4 is positive, the vertical shift is 4 units up.
Answer is A.