Task: Question Answering
Input (English): Problem: in may , the grounds keeper at spring lake golf club built a circular green with an area of 25 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 ) 80 , c ) 70 , d ) 60 , e ) 50
Output (English): a