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

Example Input: Problem: log 3 n + log 12 n what is 3 digit number n that will be whole number 
Options: a ) 6291 , b ) 7292 , c ) 1728 , d ) 1929 , e ) 1727
Example Output: c

Example Input: Problem: 60 kg of an alloy a is mixed with 100 kg of alloy b . if alloy a has lead and tin in the ratio 3 : 2 and alloy b has tin and copper in the ratio 1 : 4 , then the amount of tin in the new alloy is ? 
Options: a ) 24 kg , b ) 44 kg , c ) 20 kg , d ) 30 kg , e ) 52 kg
Example Output: b

Example Input: Problem: a certain high school has 500 students . of these students , 30 are taking music , 20 are taking art , and 10 are taking both music and art . how many students are taking neither music nor art ? 
Options: a ) 430 , b ) 440 , c ) 450 , d ) 460 , e ) 470
Example Output:
d