In the diagram, a 4\times9 grid PQTV is formed from thirty-six 1\times1 squares. Lines PR and US are drawn with R and S on QT. What is the ratio of the shaded area to the unshaded area?

**Answer Choices**

A. 5:9

B. 9:8

C. 4:5

D. 9:5

E. 5:4

In the diagram, a 4\times9 grid PQTV is formed from thirty-six 1\times1 squares. Lines PR and US are drawn with R and S on QT. What is the ratio of the shaded area to the unshaded area?

**Answer Choices**

A. 5:9

B. 9:8

C. 4:5

D. 9:5

E. 5:4