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

Ex Input:
Problem: log 3 n + log 15 n what is 3 digit number n that will be whole number 
Options: a ) 3375 , b ) 7292 , c ) 8291 , d ) 3929 , e ) 2727

Ex Output:
a


Ex Input:
Problem: a class has a ratio of 3 : 6 : 7 of children with red hair , blonde hair and black hair respectively . if the class has 9 kids with red hair , how many kids are in the class ? 
Options: a ) 99 , b ) 48 , c ) 16 , d ) 22 , e ) 60

Ex Output:
b


Ex Input:
Problem: apple costs l rupees per kilogram for first 30 kgs and q rupees per kilogram for each additional kilogram . if the price of 33 kilograms is 663 and for 36 kgs of apples is 726 then the cost of first 10 kgs of apples is 
Options: a ) 100 , b ) 150 , c ) 200 , d ) 350 , e ) 450

Ex Output:

c