In the diagram, PQRS is a rectangle with PQ=5 and QR=3. PR is divided into three segments of equal length by points T and U. The area of quadrilateral STQU is
Answer Choices
A. \frac{17}{3}
B. 5
C. \frac{5}{2}
D. \frac{\sqrt{34}}{3}
E. \sqrt{34}