In the diagram shown,

- $S T U V$ is a square,
- $Q$ and $P$ are the midpoints of $S T$ and $U V$,
- $P R=Q R$, and
- $V Q$ is parallel to $P R$.

What is the ratio of the shaded area to the unshaded

![](https://cdn.mathpix.com/cropped/2024_04_20_46ead6524a8d61e21c51g-042.jpg?height=360&width=345&top_left_y=1441&top_left_x=1386)
area?
(A) $2: 3$
(B) $3: 5$
(C) $1: 1$
(D) $7: 9$
(E) $5: 7$