Task: Question Answering
Input (English): Problem: two digits in brother ' s age are the same as the digit in the sister ' s age , but in reverse order . in 20 9 years brother will be twice as old as sister will be then . what is the difference in their current age ? 
Options: a ) 34 , b ) 50 , c ) 32 , d ) 28 , e ) 45
Output (English): e