Which function transforms the graph of y=x^2 so that it is first shifted up 3 units and is then reflected across the x-axis?
A. y=-(x+3)^2
B. y=(-x)^2+3
C. y=-x^2+3
D. y=-x^2-3
Which function transforms the graph of y=x^2 so that it is first shifted up 3 units and is then reflected across the x-axis?
A. y=-(x+3)^2
B. y=(-x)^2+3
C. y=-x^2+3
D. y=-x^2-3