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