1.The coordinates of the vertices of △RST are R(−4, −1) , S(−1, −1) , and T(−4, −2) .
The coordinates of the vertices of △R′S′T′ are R′(1, −2) , S′(1, 1) , and T′(2, −2) .

A sequence of transformations that maps △RST to △R′S′T′ is a________________followed by a______________ . (pick 2 answers)
a.translation 2 unit down

b.translation 2 unit up

c.rotation of 90 counterclockwise° about the origin

d.rotation of 180° about the origin