Task: Question Answering
Input (English): Problem: golu started from his house towards north . after covering a distance of 8 km . he turned towards left and covered a distance of 6 km . what is the shortest distance now from his house ? 
Options: a ) 10 km . , b ) 16 km . , c ) 14 km , d ) 2 km . , e ) 4 km .
Output (English): a