In this task, you need to answer the given multiple-choice question on the gain. Gain is the value by which to multiply the input. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.

Input: Consider Input: Problem: at a particular graduation party with 300 guests , 70 % of the guests brought gifts , and 40 % of the female guests brought gifts . if 30 males did not bring gifts to the party , how many females did bring gifts ? 
Options: a ) 18 , b ) 28 , c ) 40 , d ) 68 , e ) 70

Output: c


Input: Consider Input: Problem: population of a city in 20004 was 1000000 . if in 2005 there isan increment of 15 % , in 2006 there is a decrement of 35 % and in 2007 there is an increment of 45 % , then find the population of city at theend of the year 2007 
Options: a ) 2456789 , b ) 3458009 , c ) 3890043 , d ) 3455048 , e ) 1083875

Output: e


Input: Consider Input: Problem: how much 60 % of 50 is greater than 45 % of 30 ? 
Options: a ) 18 , b ) 91 , c ) 16.5 , d ) 17 , e ) 12


Output: c