In \(\triangle { XYZ } \), the length of \(\overline { XY } \) is 5 and the length of \(\overline { YZ } \) is 18. Which of the following could not be the length of \(\overline { ZX } \)?
(A)12.5 (B)13.5 (C)15 (D)16 (E)16.5
A