Problem: the area of square abcd above is 22 . the shaded region is the intersection of the square and a circular region centered at c . what is the area of the shaded region ? 
Options: ['a ) 18 − 9 / 4 ∗ π', 'b ) 22 − 11 / 2 ∗ π', 'c ) 9 + 9 / 4 ∗ π', 'd ) 9 + 9 / 2 ∗ π', 'e ) 9 / 2 − 9 / 4 ∗ π']
b