Task: Question Answering
Input (English): Problem: if i walk at 6 km / h , i miss the bus by 12 minutes . if i walk at 5 km / h , i reach 14 minutes before the arrival of the bus . how far i walk to reach the bus stand ? 
Options: a ) 13 km , b ) 12 km , c ) 11 km , d ) 6.5 km , e ) 5.5 km
Output (English): a