Task: Question Answering
Input (English): Problem: in a two - digit , if it is known that its unit ' s digit exceeds its 10 ' s digit by 2 and that the product of the given number and the sum of its digits is equal to 144 , then the number is ? 
Options: a ) 24 , b ) 26 , c ) 28 , d ) 30 , e ) none
Output (English): a