PLZ HELP..8TH TIME POSTING :)) yeahhhh

Which algebraic rule describes the transformation?

Wont let me copy and paste picture .-.

Cordinates: RUST: R= -4,-1 U= -4,-3 S= -1,-1 T= -1,-3
Cordinates: R'U'S'T': R'= 4,1 U'= 4,3 S'= 1,1 T'= 1,3

A: (x,y)-----(-x,y)
B: (x,y)-----(-x,-y)
C: (x,y)-----(-y,-x)