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

hard

In triangle $XYZ$, the measure of angle $X$ is $x^{\circ }$, the measure of angle $Y$ is $y^{\circ }$, and the measure of angle $Z$ is $17^{\circ }$. If $x>y>17$, which of the following additional pieces of information is NOT sufficient to determine the values of $x$ and $y$?

A

The value of $17-x-3y$

B

The value of $17+3x+y$

C

The value of $17-3x+3y$

D

The value of $17-3x-3y$