How to write out column form values in an array?

I have a menu that have choices that go down vertically like columns, with multiple columns of choices next to each other.

How can I write out my array when I declare it?

What I have so far

private string[,] talk_menu_comments = { { “option1” , “option2”}, { “option1b”, “option2b”} };

Each bracket should be a column but I don’t think my grouping is right, any ideas? Thanks!

if it has dynamic size, you need to define with new keyboard like below

 string[,] str = new string[4,5];
        //use two inner loops
        str[i, j] = "";


        string[][] str2 = new string[4][];
        //use a loop
        str2[i] = new string[5];