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

Example Input: Problem: a company conducted a survey about its two brands , a and b . x percent of respondents liked product a , ( x – 20 ) percent liked product b , 23 percent liked both products , and 23 percent liked neither product . what is the minimum number w of people surveyed by the company ? 
Options: a ) 46 , b ) 80 , c ) w . 90 , d ) w . 100 , e ) 200
Example Output: d

Example Input: Problem: the ratio of pens to pencils is 5 to 6 . there are 5 more pencils than pens . how many pencils are there ? 
Options: a ) 24 , b ) 30 , c ) 36 , d ) 42 , e ) 48
Example Output: b

Example Input: Problem: a bag contains 3 red , 2 blue and 3 green balls . if 2 ballsare picked at random , what is the probability that both are red ? 
Options: a ) 2 / 21 , b ) 3 / 41 , c ) 3 / 28 , d ) 3 / 31 , e ) 5 / 32
Example Output:
c