A corner of a tiled floor is shown. If the entire floor is tiled in this way and each of the four corners looks like this one, then what fraction of the tiled floor is made of darke
Answer Choices
A. \dfrac{1}{3}
B. \dfrac{4}{9}
C. \dfrac{1}{2}
D. \dfrac{5}{9}
E. \dfrac{5}{9}