Sabrina was able to map circle P onto circle R (with Q and S being on each circle, respectively) using a translation and a dilation.

Sabrina concluded: "I was able to map circle P onto circle R using a sequence of rigid transformations and a dilation, so the figures are similar."

What error did Sabrina make in her conclusion?

A. Sabrina used a translation, so the circles aren't similar.
B. Sabrina used a dilation, so the circles aren't similar.
C. There is no error. This is a correct conclusion.