Circle a has center of (4, 6) and a radius of 5, and circle b has a center of (1, 0) and a radius of 15. what steps will show that circle a is similar to circle b?
a) dilate circle a by a scale factor of 3.
b) translate circle a using the rule (x-3, y+6).
c) rotate circle a 180° about the center.
d) reflect circle a over the y-axis.