Which sequence of transformations produces a'b'c' from abc?

a. a translation up 3 and then a 90° counterclockwise rotation about the origin.

b. a 90° counterclockwise rotation about the origin and then a translation up 3.

c. a reflection over the x-axis and then a translation left 2 and down 1.

d. a translation left 5 and down 2 and then a reflection over the x-axis