Answer:
B
Step-by-step explanation:
Reflection across y- axis: The transformation rule is given by
[tex](x,y)\rightarrow (-x,y)[/tex]
There are x- coordinate change into negative x- coordinate and y coordinate remain same after reflection.
If a figure is reflected across the y- axis then the y- coordinate of the vertices in the reflection will be the same as those in the original figure and x- coordinates of the vertices in the reflection will be opposite of those in the original figure
Hence, option B is true.