Task: Question Answering
Input (English): Problem: in may , the grounds keeper at spring lake golf club built a circular green with an area of 36 π square feet . in august , he doubled the distance from the center of the green to the edge of the green . what is the total area of the renovated green ? 
Options: ['a ) 100 pi', 'b ) 144 pi', 'c ) 70', 'd ) 80', 'e ) 90']
Output (English): b