Circle Similarity Practice Test

Two circles are drawn: $\odot E$ and $\odot F$. The center points $E$ and $F$ are marked, and the radii are different. Which statement explains why the circles are similar by referencing a dilation correctly?

Two circles are shown: $\odot E$ has center $E$ and radius $7$, and $\odot F$ has center $F$ and radius $14$. Which transformation maps $\odot E$ to a circle similar to $\odot F$?