The diagram shows a square quilt that is made up of identical squares and two sizes of right-angled isosceles triangles. What percentage of the quilt is shaded?

**Answer Choices**

A. 36\%

B. 40\%

C. 44\%

D. 48\%

E. 50\%

The diagram shows a square quilt that is made up of identical squares and two sizes of right-angled isosceles triangles. What percentage of the quilt is shaded?

**Answer Choices**

A. 36\%

B. 40\%

C. 44\%

D. 48\%

E. 50\%