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'.

Input: Consider Input: Problem: the mean of 50 observations was 36 . it was found later that an observation 48 was wrongly taken as 23 . the corrected new mean is : 
Options: a ) 36.5 , b ) 35 , c ) 34 , d ) 33 , e ) 32.5

Output: a


Input: Consider Input: Problem: when a number is divided by 6 & then multiply by 12 the answer is 8 what is the no . ? 
Options: a ) 4.5 , b ) 5 , c ) 5.5 , d ) 5.8 , e ) 4

Output: e


Input: Consider Input: Problem: the unit digit in the product 3421 * 6721 * 4584 * 6784 is ? 
Options: a ) 0 , b ) 1 , c ) 6 , d ) 3 , e ) 4


Output: c