Plzzz ! i seem to get the answer wrong every ! 10 points!

what are the vertices of the image of triangle abc for the glide reflection (ry = 0° t< 4, 0 > )(triangle abc)? triangle abc has vertices a(−5, 6), b(−3, 2) and c(−1, 2).

a.
a'(4, 6), b'(1, 2), c'(3, 2)
b.
a'(−5, −6), b'(−3, −1), c'(−2, −1)
c.
a'(8, 6), b'(5, 2), c'(7, 2)
d.
a'(−1, −6), b'(1, −2), c'(3, −2)