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

Ex Input:
Problem: the average monthly income of p and q is rs . 2050 . the average monthly income of q and r is rs . 5250 and the average monthly income of p and r is rs . 6200 . the monthly income ofq is : 
Options: a ) 1100 , b ) 2100 , c ) 1200 , d ) 3100 , e ) 1300

Ex Output:
a


Ex Input:
Problem: a parking garage rents parking spaces for $ 10 per week or $ 25 per month . how much does a person save in a year by renting by the month rather than by the week ? 
Options: a ) $ 120 , b ) $ 160 , c ) $ 220 , d ) $ 240 , e ) $ 260

Ex Output:
a


Ex Input:
Problem: david obtained 72 , 60 , 35 , 62 and 84 marks ( out of 100 ) in english , mathematics , physics , chemistry and biology what are his average marks ? 
Options: a ) 75 , b ) 62.6 , c ) 87 , d ) 165 , e ) 11

Ex Output:

b