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

hard

Note: Figure not drawn to scale.

$△QPR$ is similar to $△STR$. The lengths represented by $\overline{ST}$, $\overline{QP}$, $\overline{PR}$, and $\overline{QR}$ in the figure are $17$, $21$, $28$, and $35$, respectively. What is the length of $\overline{SR}$?

A

$\frac{595}{21}$

B

$\frac{595}{28}$

C

$\frac{357}{28}$

D

$\frac{357}{35}$