9514 1404 393
Answer:
A. <dilation by a factor of 1/7>
Explanation:
Rotation, reflection, and translation are "rigid" motions that preserve congruence.
Dilation does not preserve congruence. Dilation multiplies the coordinates by a dilation factor, as in the transformation of choice A.
(x, y) ⇒ (x/7, y/7) . . . does NOT preserve congruence