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'.

Ex Input:
Problem: a cargo ships engines failed 100 miles away from the port . due to the changing wind direction , it is moving 12 miles towards the port and 6 miles away from the port . if the wind pattern remains same , how many miles it will travel before reaching the port ? 
Options: a ) a - 179 , b ) b - 240 , c ) c - 280 , d ) d - 100 , e ) e - 155

Ex Output:
c


Ex Input:
Problem: two trains 140 m and 160 m long run at the speed of 60 kmph and 40 kmph in opposite directions in parallel tracks . the time which they take to cross each other is ? 
Options: a ) 5.6 sec , b ) 8.9 sec , c ) 10.8 sec , d ) 12.6 sec , e ) 15 sec

Ex Output:
c


Ex Input:
Problem: the sum of three consecutive numbers is 252 . the greatest among these three number is : 
Options: a ) 45 , b ) 80 , c ) 85 , d ) 55 , e ) 40

Ex Output:

c