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: the number 70 can be written as the sum of the squares of 3 different positive integers . what is the sum of these 3 integers ? 
Options: a ) 17 , b ) 16 , c ) 15 , d ) 14 , e ) 13
Example Output: d

Example Input: Problem: find the area of a parallelogram with base 24 cm and height 16 cm . 
Options: a ) 379 , b ) 384 , c ) 345 , d ) 342 , e ) 376
Example Output: b

Example Input: Problem: what is the measure of the angle w made by the diagonals of the any adjacent sides of a cube . 
Options: a ) 30 , b ) 45 , c ) 60 , d ) 75 , e ) 90
Example Output:
c