∵ WX // VY // UZ
∵ WU and XZ are transversals
→ The transversals intersect the parallel lines into parts equal in ratio
[tex]\therefore\frac{UV}{ZY}=\frac{VW}{YX}[/tex]
We can switch VW with ZY to be
[tex]\frac{UV}{VW}=\frac{ZY}{YX}[/tex]
Then the answer is A
