In this task, you need to provide the correct option for a given problem on probability from the provided options.

Ex Input:
Problem: in a certain animal population , for each of the first 3 months of life , the probability that an animal will die during that month is 1 / 10 . for a group of 250 newborn members of the population , approximately how many would be expected to survive the first 3 months of life ? 
Options: a ) 140 , b ) 146 , c ) 152 , d ) 162 , e ) 183

Ex Output:
e


Ex Input:
Problem: a meeting has to be conducted with 6 managers . find the number of ways in which the managers may be selected from among 9 managers , if there are 2 managers who refuse to attend the meeting together . 
Options: a ) 36 , b ) 40 , c ) 42 , d ) 45 , e ) 49

Ex Output:
e


Ex Input:
Problem: what is the probability of getting a queen or spade from a set of cards ? 
Options: a ) 3 / 13 , b ) 4 / 13 , c ) 5 / 13 , d ) 6 / 13 , e ) 7 / 13

Ex Output:

b