Final answer:
The reflected coordinates of (1,2) across the y-axis are (-1,2) and the reflected coordinates of (-3,-3) are (3,-3).
Step-by-step explanation:
To reflect a point across the y-axis, we change the sign of its x-coordinate while keeping the y-coordinate the same.
So, the reflected coordinates of (1,2) would be (-1,2) and the reflected coordinates of (-3,-3) would be (3,-3).
Therefore, the correct answer is A) (-1,2) and (3,-3).