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

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Triangle $ABC$ is similar to triangle $XYZ$ such that $A$, $B$, and $C$ correspond to $X$, $Y$, and $Z$, respectively. The length of each side of triangle $ABC$ is $n$ times the length of its corresponding side in triangle $XYZ$, where $n$ is an integer greater than $1$. The measure of angle $C$ is $58$ degrees, and $YZ=71$. Which of the following must be true?

A

The measure of angle $Z$ is $\frac{58}{n}$ degrees.

B

The measure of angle $Z$ is $58n$ degrees.

C

$BC=\frac{71}{n}$

D

$BC=71n$