Which must be true in order for the relationship triangle ZYX approximates triangle WVU to be correct?

For the similarity statement △ZYX ~ △WVU to be correct, the vertices must correspond in the stated order: Z ↔ W, Y ↔ V, and X ↔ U. Therefore corresponding angles must be congruent, including ∠Z ≅ ∠W and ∠X ≅ ∠U. Choice B gives these required angle matches; the other choices either compare noncorresponding angles or state irrelevant parallel relationships.

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