Problem: the length of a rectangle is two third of the radius of a circle . the radius of the circle is equal to the side of the square , whose area is 4761 sq . units . what is the area ( in sq . units ) of the rectangle if the rectangle if the breadth is 13 units ? 
Options: ['a ) 598 sq . units', 'b ) 556 sq . units', 'c ) 589 sq . units', 'd ) 958 sq . units', 'e ) 985 sq . units']
a