using System;
using System.Collections.Generic;
using System.Linq;

public class Test
{
	public static void Main()
	{
		var listOfArrays = new List<string[]> {
			new[] {"1", "A", "X"}, new[] {"2", "B", "Y"}, new[] {"3", "C", "Z"}
		};
		var myListOfStrings = listOfArrays.Select(a => a[1]).ToList();
		foreach (var s in myListOfStrings) {
			Console.WriteLine(s);
		}
	}
}