Task: Question Answering
Input (English): Problem: two cars start from the opposite places of a main road , 140 km apart . first car runs for 25 km and takes a right turn and then runs 15 km . it then turns left and then runs for another 25 km and then takes the direction back to reach the main road . in the mean time , due to minor break down the other car has run only 35 km along the main road . what would be the distance between two cars at this point ? 
Options: a ) 65 , b ) 38 , c ) 20 , d ) 55 , e ) 21
Output (English): d