Task: Question Answering
Input (English): 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 f of people surveyed by the company ? 
Options: a ) 46 , b ) 80 , c ) f = 90 , d ) f = 100 , e ) 200
Output (English): d