What fraction of the area of rectangle ABCD is the area of the shaded square?

Answer Choices
A. \frac{1}{15}
B. \frac{1}{8}
C. \frac{1}{10}
D. \frac{1}{4}
E. \frac{1}{12}
What fraction of the area of rectangle ABCD is the area of the shaded square?
Answer Choices
A. \frac{1}{15}
B. \frac{1}{8}
C. \frac{1}{10}
D. \frac{1}{4}
E. \frac{1}{12}