2013 Fermat Problem 16

Rectangle PQRS is divided into 60 identical squares, as shown. The length of the diagonal of each of these squares is 2. The length of QS is closest to

\textbf{(A)}\ 18\quad \textbf{(B)}\ 13\quad \textbf{(C)}\ 26\quad \textbf{(D)}\ 24\quad \textbf{(E)}\ 17

If there are no answer choices shown, enter a numerical answer.

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