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

Ex Input:
Problem: at a certain organisation , the number of male members went up by 13 % in the year 2001 from year 2000 , and the number of females members went down by 6 % in the same time period . if the total membership at the organisation went up by 1.2 % from the year 2000 to 2001 , what was the ratio of male members to female members in the year 2000 ? 
Options: a ) 1 : 2 , b ) 1 : 3 , c ) 2 : 3 , d ) 3 : 5 , e ) 2 : 1

Ex Output:
d


Ex Input:
Problem: find the fraction which has the same ratio to 1 / 13 that 5 / 34 has to 7 / 48 . 
Options: a ) 110 / 1547 , b ) 120 / 1547 , c ) 140 / 1547 , d ) 160 / 1547 , e ) 220 / 1547

Ex Output:
b


Ex Input:
Problem: three numbers are in the ratio 3 : 4 : 5 and their l . c . m . is 2400 . their h . c . f is ? 
Options: a ) 20 , b ) 30 , c ) 40 , d ) 50 , e ) 60

Ex Output:

c