Answer:
B. They must be similar
Explanation:
If you want to know why shape X and shape Y are similar but not congruent, here's a funny way to remember it. Imagine shape X is a cute little kitten and shape Y is a giant lion. They both have four legs, a tail, and a furry body, so they are similar. But they are not the same size, so they are not congruent. You can't make them congruent by rotating, reflecting or translating them, because that would just change their position or orientation. You would need to use a magic wand to shrink the lion or enlarge the kitten. But then you would have a different problem: how to feed them and keep them happy. A scale factor of 3 means that shape Y is 3 times bigger than shape X in every dimension. That's like having a lion that weighs 900 pounds and eats 90 pounds of meat a day. Good luck with that!
Similar figures have the same angles and proportional sides, but not necessarily the same size. Congruent figures have the same angles and sides, and therefore the same size. Point symmetry means that every point on a figure has a corresponding point that is the same distance from a central point but in the opposite direction. Line symmetry means that a figure can be folded along a line so that the two halves match exactly.
✧☆*: .｡. That's all folks, have fun with math! (✧ω✧) .｡.:*☆✧