In this task, you need to answer the given multiple-choice question on geometry. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.

Input: Consider Input: Problem: approximately how many cubic feet of water are needed to fill a circular swimming pool that is 70 feet across and 9 feet deep ? 
Options: ['a ) 4000', 'b ) 10000', 'c ) 20000', 'd ) 35000', 'e ) 45000']

Output: d


Input: Consider Input: Problem: carol and jordan draw rectangles of equal area . if carol ' s rectangle measures 12 inches by 15 inches and jordan ' s rectangle is 6 inches long , how wide is jordan ' s rectangle , in inches ? 
Options: ['a ) 24', 'b ) 26', 'c ) 28', 'd ) 30', 'e ) 32']

Output: d


Input: Consider Input: Problem: a box measuring 35 inches long by 20 inches wide by 10 inches deep is to be filled entirely with identical cubes . no space is to be left unfilled . what is the smallest number of cubes that can accomplish this objective ? 
Options: a ) 17 , b ) 18 , c ) 54 , d ) 56 , e ) 864


Output: d