You will be given a definition of a task first, then an example. Follow the example to solve a new instance of the task.
In this task, you need to provide the correct option for a given problem on probability from the provided options.

Problem: in a throw of a coin find the probability of getting a tail ? 
Options: a ) 1 / 2 , b ) 1 / 3 , c ) 1 / 4 , d ) 2 / 5 , e ) 2 / 7
Solution: a
Why? "s = { h , t } e = { t } p ( e ) = 1 / 2 answer is a"

New 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 500 newborn members of the population , approximately how many would be expected to survive the first 3 months of life ? 
Options: a ) 340 , b ) 346 , c ) 352 , d ) 365 , e ) 370
Solution:
d