In this task, you need to provide the correct option for a given problem from the provided options.

Example Input: Problem: a technology company made a $ 5 million profit on its first $ 15 million in sales and a $ 12 million profit on its next $ 30 million in sales . by what percent did the ratio of profit to sales increase from the first $ 15 million in sales to the next $ 30 million in sales ?
Options: a ) 10 % , b ) 20 % , c ) 30 % , d ) 40 % , e ) 50 %
Example Output: b

Example Input: Problem: on multiplying a number a by 153 , the result obtained was 102325 . however , it is found that both the 2 ' s are wrong . find the correct result .
Options: a ) 104345 , b ) 107375 , c ) 108385 , d ) 109395 , e ) 105355
Example Output: d

Example Input: Problem: how many of the positive factors of 36 are not factors of 72
Options: a ) 0 , b ) 3 , c ) 4 , d ) 5 , e ) 1
Example Output:
a