Right \triangle A B C has A B=3, B C=4, and A C=5. Square X Y Z W is inscribed in \triangle A B C with X and Y on \overline{A C}, W on \overline{A B}, and Z on \overline{B C}. What is the side length of the square?

**Answer Choices**

A. \dfrac{3}{2}

B. \dfrac{60}{37}

C. \dfrac{12}{7}

D. \dfrac{23}{13}

E. 2