A(-4,-2), B(-1,-1), C(-1,-4)

what are the coordinate of triangle ABC when reflected over the line y=-x?

A). A'(-2,4), B'(1,1), C(-4,1)
B). A'(2,4), B'(1,1), C(4,1)
C). A'(4,2), B'(1,2), C'(2,1)
D). A'(2,4), B'(1,-1),C' (4,-1) ​