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: p , q and r can do a work in 6 , 9 and 12 days respectively . they completed the work and got rs . 195 . what is the share of p ? 
Options: a ) 80 , b ) 70 , c ) 85 , d ) 90 , e ) 95

Ex Output:
d


Ex Input:
Problem: find the length of the longest pole that can be placed in an indoor stadium 24 m long , 18 m wide and 16 m high 
Options: a ) 31 , b ) 32 , c ) 33 , d ) 34 , e ) 35

Ex Output:
d


Ex Input:
Problem: pipe a can fill a tank in 6 minutes and pipe b cam empty it in 24 minutes . if both the pipes are opened together after how many minutes should pipe b be closed , so that the tank is filled in 30 minutes ? 
Options: a ) 18 , b ) 27 , c ) 96 , d ) 27 , e ) 21

Ex Output:

c