Circle j is located in the first quadrant with center (a, b) and radius s. felipe transforms circle j to prove that it is similar to any circle centered at the origin wuth radius r. which sequence of transformations did felipe use?

a. translate circle j by(x+a, y+b) and dilate by a factor of t/s
b. translate circle j by (x+a, y+b) and dilate by a factor of s/t
c. translate circle j by (x-a, y-b) and dilate by a factor of t/s
d. translate circle j by (x-a, y-b) and dilate by a factor of s/t