You have the following points:
A(-3,4)
B(0,1)
C(4,2)
When you apply a reflection around the y axis, you obtain:
T(x,y) => (-x,y)
Then, for the given points you obtain:
A(-3,4) => A'(3,4)
B(0,1) => B'(0,1)
C(4,2) => C'(-4,2)
Then, from the points if the options, you can conclude that the point (0,3) is NOT one of the point of the reflected image.