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: triangle atriangle b are similar triangles with areas 1792 units square and 2527 units square respectively . the ratio of there corresponding height would be
Options: a ) 9 : 10 , b ) 17 : 19 , c ) 23 : 27 , d ) 16 : 19 , e ) 15 : 23
Example Output: d

Example Input: Problem: if k and w are the dimensions of a rectangle that has area 20 and if k and w are integers such that k > w , what is the total number of possible values of k ?
Options: ['a ) two', 'b ) three', 'c ) four', 'd ) five', 'e ) six']
Example Output: b

Example Input: Problem: when the circumference and area of a circle are numerically equal , then the diameter is numerically equal to
Options: ['a ) area', 'b ) circumference', 'c ) 4', 'd ) 2 ', 'e ) none of these']
Example Output:
c