Task: Question Answering
Input (English): Problem: a man is walking at a speed of 6 km per hour . after every km he takes rest for 6 minutes . how much time will he take to cover a distance of 12 km . 
Options: a ) 3 hr , b ) 5 hr 42 min , c ) 4 hrs . 10 min , d ) 3 hr . 6 min , e ) none of these
Output (English): d