Answer:
<h2>D) Dilate circle A by a scale factor of 5.</h2>
Step-by-step explanation:
The most reasonable transformation we could do to show the similarity between both circle is to dilate circle A by a scale factor of 5, that is, increases the sized of circle A five time, that will give a congruent circle to circle B. Because, as you can see, the radius of A is 7 and the radius of B is 35, their ratio is 5.
Remember that a similarity between circles is based on the radius, if they have the same radius, they are congruent, if they have proportional radius, they are similar.
So, in this case, they are proportional, which a ratio of 5, that's why dilating circle A 5 times is the best way to show the similarity.