How to extract value from an array of array

Question

I have an array of array stored. I need to extract the particular value from this arrays.

e.g allarray contain the list of arrays allarray= [Array[3],Array[3],Array[3]]

Answer 1

You can access it by running

allarray[X][2]

where X is 0, 1, or 2 depending on which of the 3 arrays you want