In the diagram below, triangle RST has been reflected vertically and horizontally and then dilated to produce triangle XYZ .

T

Y

RX-

S

Which statement must be true?

A = (RS)/(XY) = (RT)/(XZ)

OB.m m angle Y=m angle Z

m angle S=m angle Z

D - (RS)/(XZ) = (RT)/(YZ)