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

Example Input: Problem: when leo imported a certain item , he paid a 7 percent import tax on the portion of the total value of the item in excess of $ 1000 . if the amount of the import tax that leo paid was $ 87.50 , what was the total value of the item ? 
Options: a ) $ 1600 , b ) $ 1850 , c ) $ 2250 , d ) $ 2400 , e ) $ 2750
Example Output: c

Example Input: Problem: the sum of the numbers is 220 . if the first number be twice the second and third number be one - third of the first , then the second number is : 
Options: a ) 48 , b ) 54 , c ) 72 , d ) 60 , e ) 27
Example Output: d

Example Input: Problem: x and y are positive integers . when x is divided by 17 , the remainder is 3 , and when x is divided by 19 , the remainder is 1 . when y is divided by 14 , the remainder is 5 , and when y is divided by 21 , the remainder is 12 . what is the least possible value of y - x ? 
Options: a ) 15 , b ) 13 , c ) 11 , d ) 14 , e ) 18
Example Output:
b