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

Example Input: Problem: how many pieces can a square pizza be cut into by making 6 linear cuts ?
Options: a ) 20 , b ) 21 , c ) 22 , d ) 23 , e ) 24
Example Output: c

Example Input: Problem: a box measuring 25 inches long by 30 inches wide by 15 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 ) 80 , b ) 82 , c ) 84 , d ) 88 , e ) 90
Example Output: e

Example Input: Problem: what is the area of a square field whose diagonal of length 30 m ?
Options: a ) 287 , b ) 269 , c ) 450 , d ) 200 , e ) 230
Example Output:
c