Rectangle RSTU and the image R’S’T’U’ are graphed on the coordinate grid below.

On a coordinate plane, rectangle R S T U has points (1, 1), (1, 4), (5, 4), (5, 1). Rectangle R prime S prime T prime U prime has points (negative 1, 1), (negative 4, 1), (negative 4, 5), (negative 1, 5).

Which statements describe the rotations about the origin that could have transformed RSTU to R’S’T’U’? Check all that apply.