In this task, you need to answer the given multiple-choice question on the physics. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.

Input: Consider Input: Problem: how long does a train 90 m long traveling at 60 kmph takes to cross a bridge of 170 m in length ? 
Options: a ) sec , b ) sec , c ) sec , d ) sec , e ) sec

Output: d


Input: Consider Input: Problem: sandy walked 20 meters towards south . then sandy turned to her left and walked 25 meters . she then turned to her left and walked 20 meters . she then turned to her right and walked 30 meters . what distance is she from the starting point and in which direction ? 
Options: a ) 35 m east , b ) 35 m north , c ) 30 m west , d ) 45 m west , e ) 55 m east

Output: e


Input: Consider Input: Problem: two trains travel in opposite directions at 36 kmph and 45 kmph and a man sitting in slower train passes the faster train in 6 seconds . the length of the faster train is 
Options: a ) 80 m , b ) 100 m , c ) 120 m , d ) 135 m , e ) none


Output: d