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: in what time will a train 100 meters long cross an electric pole , if its speed is 162 km / hr 
Options: a ) 8.5 seconds , b ) 2.22 seconds , c ) 3.5 seconds , d ) 2.5 seconds , e ) 2.6 seconds

Output: b


Input: Consider Input: Problem: a man can row 5 kmph in still water . when the river is running at 2 kmph , it takes him 1 hour to row to a place and black . what is the total distance traveled by the man ? 
Options: a ) 5.75 , b ) 5.7 , c ) 5.76 , d ) 4.2 , e ) 5.71

Output: d


Input: Consider Input: Problem: a train which has 420 m long , is running 45 kmph . in what time will it cross a person moving at 9 kmph in same direction ? 
Options: a ) 56 sec , b ) 42 sec , c ) 36 sec , d ) 29 sec . , e ) 19 sec .


Output: b