Task: Question Answering
Input (English): Problem: of the 75 cars on a car lot , 45 have air - conditioning , 35 have power steering , and 12 have both air - conditioning and power steering . how many of the cars on the lot have neither air - conditioning nor power steering ? 
Options: a ) 7 , b ) 8 , c ) 10 , d ) 15 , e ) 18
Output (English): a