(02.02 LC)
Triangle ABC is shown below:

Triangle ABC is shown. A is at 2, 1. B is at negative 1, 4. C is at 3, 7.

If triangle ABC is reflected over the y-axis, which of the following shows the coordinates for point B'? (5 points)

a
(1, 4)

b
(−1, −4)

c
(1, −4)

d
(−1, 4)