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

Input: Consider Input: Problem: the monthly incomes of a and b are in the ratio 5 : 2 . b ' s monthly income is 12 % more than c ' s monthly income . if c ' s monthly income is rs . 12000 , then find the annual income of a ? 
Options: a ) rs . 420000 , b ) rs . 403200 , c ) rs . 201600 , d ) rs . 504000 , e ) none of these

Output: b


Input: Consider Input: Problem: a certain car dealership sells economy cars , luxury cars , and sport utility vehicles . the ratio of economy to luxury cars is 3 : 4 . the ratio of economy cars to sport utility vehicles is 4 : 3 . what is the ratio of luxury cars to sport utility vehicles ? 
Options: a ) 9 : 8 , b ) 8 : 9 , c ) 3 : 2 , d ) 2 : 3 , e ) 16 : 9

Output: e


Input: Consider Input: Problem: the ratio of boys to girl in a school is 5 : 4 . if there are 1500 boys in the school , how many girls are there ? 
Options: a ) 300 , b ) 1200 , c ) 1500 , d ) 1800 , e ) 2000


Output: b