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: 54671 - 14456 - 35466 = ?
Options: a ) 2449 , b ) 5449 , c ) 6749 , d ) 6449 , e ) 4749

Ex Output:
e

Ex Input:
Problem: in a certain egg - processing plant , every egg must be inspected , and is either accepted for processing or rejected . for every 96 eggs accepted for processing , 4 eggs are rejected . if , on a particular day , 12 additional eggs were accepted , but the overall number of eggs inspected remained the same , the ratio of those accepted to those rejected would be 99 to 1 . how many q eggs does the plant process per day ?
Options: a ) 100 , b ) 300 , c ) 400 , d ) 3000 , e ) 4000

Ex Output:
c

Ex Input:
Problem: if 4 xz + yw = 4 and xw + yz = 8 , what is the value of the expression ( 2 x + y ) ( 2 z + w ) ?
Options: a ) 22 , b ) 20 , c ) 24 , d ) 26 , e ) 28

Ex Output:
b