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Math·Geometry and Trigonometry·Lines, angles, and triangles

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In the figure, parallel lines $a$ and $b$ are intersected by lines $c$, $d$, and $e$. If $z=49$, $y=136$, and $v<z$, which statement about $x$ and $w$ must be true?

A

$x<w$

B

$x>w$

C

$x=w$

D

$x+w=90$