using System;

using System.Linq;

public class Program

{

    public static void Main()

    {

        string[] strings = {"zero", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine"};

​

        var startsWithO = strings.First(s => s[0] == 'o');

​

        Console.WriteLine("A string starting with 'o': {0}", startsWithO);

​

    }

}