Task: Question Answering
Input (English): Problem: a man was asked to state his age in years . his reply was , ` ` take my age 6 years hence , multiply it by 6 and subtract 6 times my age 6 years ago and you will know how old i am . ' ' what was the age of the person ? 
Options: a ) 18 , b ) 92 , c ) 72 , d ) 26 , e ) 19
Output (English): c